Commit Graph

36543 Commits

Author SHA1 Message Date
Linus Torvalds
138bcddb86 Add a mitigation for the speculative RAS (Return Address Stack) overflow
vulnerability on AMD processors. In short, this is yet another issue
 where userspace poisons a microarchitectural structure which can then be
 used to leak privileged information through a side channel.
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Merge tag 'x86_bugs_srso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/srso fixes from Borislav Petkov:
 "Add a mitigation for the speculative RAS (Return Address Stack)
  overflow vulnerability on AMD processors.

  In short, this is yet another issue where userspace poisons a
  microarchitectural structure which can then be used to leak privileged
  information through a side channel"

* tag 'x86_bugs_srso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/srso: Tie SBPB bit setting to microcode patch detection
  x86/srso: Add a forgotten NOENDBR annotation
  x86/srso: Fix return thunks in generated code
  x86/srso: Add IBPB on VMEXIT
  x86/srso: Add IBPB
  x86/srso: Add SRSO_NO support
  x86/srso: Add IBPB_BRTYPE support
  x86/srso: Add a Speculative RAS Overflow mitigation
  x86/bugs: Increase the x86 bugs vector size to two u32s
2023-08-07 16:35:44 -07:00
Linus Torvalds
a027b2eca0 x86:
* Fix SEV race condition
 
 ARM:
 
 * Fixes for the configuration of SVE/SME traps when hVHE mode is in use
 
 * Allow use of pKVM on systems with FF-A implementations that are v1.0
   compatible
 
 * Request/release percpu IRQs (arch timer, vGIC maintenance) correctly
   when pKVM is in use
 
 * Fix function prototype after __kvm_host_psci_cpu_entry() rename
 
 * Skip to the next instruction when emulating writes to TCR_EL1 on
   AmpereOne systems
 
 Selftests:
 
 * Fix missing include
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86:

   - Fix SEV race condition

  ARM:

   - Fixes for the configuration of SVE/SME traps when hVHE mode is in
     use

   - Allow use of pKVM on systems with FF-A implementations that are
     v1.0 compatible

   - Request/release percpu IRQs (arch timer, vGIC maintenance)
     correctly when pKVM is in use

   - Fix function prototype after __kvm_host_psci_cpu_entry() rename

   - Skip to the next instruction when emulating writes to TCR_EL1 on
     AmpereOne systems

  Selftests:

   - Fix missing include"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  selftests/rseq: Fix build with undefined __weak
  KVM: SEV: remove ghcb variable declarations
  KVM: SEV: only access GHCB fields once
  KVM: SEV: snapshot the GHCB before accessing it
  KVM: arm64: Skip instruction after emulating write to TCR_EL1
  KVM: arm64: fix __kvm_host_psci_cpu_entry() prototype
  KVM: arm64: Fix resetting SME trap values on reset for (h)VHE
  KVM: arm64: Fix resetting SVE trap values on reset for hVHE
  KVM: arm64: Use the appropriate feature trap register when activating traps
  KVM: arm64: Helper to write to appropriate feature trap register based on mode
  KVM: arm64: Disable SME traps for (h)VHE at setup
  KVM: arm64: Use the appropriate feature trap register for SVE at EL2 setup
  KVM: arm64: Factor out code for checking (h)VHE mode into a macro
  KVM: arm64: Rephrase percpu enable/disable tracking in terms of hyp
  KVM: arm64: Fix hardware enable/disable flows for pKVM
  KVM: arm64: Allow pKVM on v1.0 compatible FF-A implementations
2023-08-07 10:18:20 -07:00
Linus Torvalds
024ff300db hyperv-fixes for 6.5-rc5
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Merge tag 'hyperv-fixes-signed-20230804' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Fix a bug in a python script for Hyper-V (Ani Sinha)

 - Workaround a bug in Hyper-V when IBT is enabled (Michael Kelley)

 - Fix an issue parsing MP table when Linux runs in VTL2 (Saurabh
   Sengar)

 - Several cleanup patches (Nischala Yelchuri, Kameron Carr, YueHaibing,
   ZhiHu)

* tag 'hyperv-fixes-signed-20230804' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Remove unused extern declaration vmbus_ontimer()
  x86/hyperv: add noop functions to x86_init mpparse functions
  vmbus_testing: fix wrong python syntax for integer value comparison
  x86/hyperv: fix a warning in mshyperv.h
  x86/hyperv: Disable IBT when hypercall page lacks ENDBR instruction
  x86/hyperv: Improve code for referencing hyperv_pcpu_input_arg
  Drivers: hv: Change hv_free_hyperv_page() to take void * argument
2023-08-04 17:16:14 -07:00
Linus Torvalds
e661f98c82 RISC-V Fixes for 6.5-rc5
* A pair of fixes for build-related failures in the selftests.
 * A fix for a sparse warning in acpi_os_ioremap().
 * A fix to restore the kernel PA offset in vmcoreinfo, to fix crash
   handling.
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Merge tag 'riscv-for-linus-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A pair of fixes for build-related failures in the selftests

 - A fix for a sparse warning in acpi_os_ioremap()

 - A fix to restore the kernel PA offset in vmcoreinfo, to fix crash
   handling

* tag 'riscv-for-linus-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  Documentation: kdump: Add va_kernel_pa_offset for RISCV64
  riscv: Export va_kernel_pa_offset in vmcoreinfo
  RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address
  selftests: riscv: Fix compilation error with vstate_exec_nolibc.c
  selftests/riscv: fix potential build failure during the "emit_tests" step
2023-08-04 16:04:37 -07:00
Mark Brown
d5ad9aae13 selftests/rseq: Fix build with undefined __weak
Commit 3bcbc20942 ("selftests/rseq: Play nice with binaries statically
linked against glibc 2.35+") which is now in Linus' tree introduced uses
of __weak but did nothing to ensure that a definition is provided for it
resulting in build failures for the rseq tests:

rseq.c:41:1: error: unknown type name '__weak'
__weak ptrdiff_t __rseq_offset;
^
rseq.c:41:17: error: expected ';' after top level declarator
__weak ptrdiff_t __rseq_offset;
                ^
                ;
rseq.c:42:1: error: unknown type name '__weak'
__weak unsigned int __rseq_size;
^
rseq.c:43:1: error: unknown type name '__weak'
__weak unsigned int __rseq_flags;

Fix this by using the definition from tools/include compiler.h.

Fixes: 3bcbc20942 ("selftests/rseq: Play nice with binaries statically linked against glibc 2.35+")
Signed-off-by: Mark Brown <broonie@kernel.org>
Message-Id: <20230804-kselftest-rseq-build-v1-1-015830b66aa9@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-04 18:10:29 -04:00
Linus Torvalds
c1a515d3c0 perf tools fixes for 6.5: 2nd batch
- Fix segfault in the powerpc specific arch_skip_callchain_idx function.
   The patch doing the reference count init/exit that went into 6.5 missed
   this function.
 
 - Fix regression reading the arm64 PMU cpu slots in sysfs, a patch removing
   some code duplication ended up duplicating the /sysfs prefix for these files.
 
 - Fix grouping of events related to topdown, addressing a regression on the CSV
   output produced by 'perf stat' noticed on the downstream tool toplev.
 
 - Fix the uprobe_from_different_cu 'perf test' entry, it is failing when
   gcc isn't available, so we need to check that and skip the test if it
   is not installed.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.5-2-2023-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix segfault in the powerpc specific arch_skip_callchain_idx
   function. The patch doing the reference count init/exit that went
   into 6.5 missed this function.

 - Fix regression reading the arm64 PMU cpu slots in sysfs, a patch
   removing some code duplication ended up duplicating the /sysfs prefix
   for these files.

 - Fix grouping of events related to topdown, addressing a regression on
   the CSV output produced by 'perf stat' noticed on the downstream tool
   toplev.

 - Fix the uprobe_from_different_cu 'perf test' entry, it is failing
   when gcc isn't available, so we need to check that and skip the test
   if it is not installed.

* tag 'perf-tools-fixes-for-v6.5-2-2023-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf test parse-events: Test complex name has required event format
  perf pmus: Create placholder regardless of scanning core_only
  perf test uprobe_from_different_cu: Skip if there is no gcc
  perf parse-events: Only move force grouped evsels when sorting
  perf parse-events: When fixing group leaders always set the leader
  perf parse-events: Extra care around force grouped events
  perf callchain powerpc: Fix addr location init during arch_skip_callchain_idx function
  perf pmu arm64: Fix reading the PMU cpu slots in sysfs
2023-08-03 15:47:39 -07:00
Linus Torvalds
999f663186 Including fixes from bpf and wireless.
Nothing scary here. Feels like the first wave of regressions
 from v6.5 is addressed - one outstanding fix still to come
 in TLS for the sendpage rework.
 
 Current release - regressions:
 
  - udp: fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
 
  - dsa: fix older DSA drivers using phylink
 
 Previous releases - regressions:
 
  - gro: fix misuse of CB in udp socket lookup
 
  - mlx5: unregister devlink params in case interface is down
 
  - Revert "wifi: ath11k: Enable threaded NAPI"
 
 Previous releases - always broken:
 
  - sched: cls_u32: fix match key mis-addressing
 
  - sched: bind logic fixes for cls_fw, cls_u32 and cls_route
 
  - add bound checks to a number of places which hand-parse netlink
 
  - bpf: disable preemption in perf_event_output helpers code
 
  - qed: fix scheduling in a tasklet while getting stats
 
  - avoid using APIs which are not hardirq-safe in couple of drivers,
    when we may be in a hard IRQ (netconsole)
 
  - wifi: cfg80211: fix return value in scan logic, avoid page
    allocator warning
 
  - wifi: mt76: mt7615: do not advertise 5 GHz on first PHY
    of MT7615D (DBDC)
 
 Misc:
 
  - drop handful of inactive maintainers, put some new in place
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and wireless.

  Nothing scary here. Feels like the first wave of regressions from v6.5
  is addressed - one outstanding fix still to come in TLS for the
  sendpage rework.

  Current release - regressions:

   - udp: fix __ip_append_data()'s handling of MSG_SPLICE_PAGES

   - dsa: fix older DSA drivers using phylink

  Previous releases - regressions:

   - gro: fix misuse of CB in udp socket lookup

   - mlx5: unregister devlink params in case interface is down

   - Revert "wifi: ath11k: Enable threaded NAPI"

  Previous releases - always broken:

   - sched: cls_u32: fix match key mis-addressing

   - sched: bind logic fixes for cls_fw, cls_u32 and cls_route

   - add bound checks to a number of places which hand-parse netlink

   - bpf: disable preemption in perf_event_output helpers code

   - qed: fix scheduling in a tasklet while getting stats

   - avoid using APIs which are not hardirq-safe in couple of drivers,
     when we may be in a hard IRQ (netconsole)

   - wifi: cfg80211: fix return value in scan logic, avoid page
     allocator warning

   - wifi: mt76: mt7615: do not advertise 5 GHz on first PHY of MT7615D
     (DBDC)

  Misc:

   - drop handful of inactive maintainers, put some new in place"

* tag 'net-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (98 commits)
  MAINTAINERS: update TUN/TAP maintainers
  test/vsock: remove vsock_perf executable on `make clean`
  tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen
  tcp_metrics: annotate data-races around tm->tcpm_net
  tcp_metrics: annotate data-races around tm->tcpm_vals[]
  tcp_metrics: annotate data-races around tm->tcpm_lock
  tcp_metrics: annotate data-races around tm->tcpm_stamp
  tcp_metrics: fix addr_same() helper
  prestera: fix fallback to previous version on same major version
  udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
  net/mlx5e: Set proper IPsec source port in L4 selector
  net/mlx5: fs_core: Skip the FTs in the same FS_TYPE_PRIO_CHAINS fs_prio
  net/mlx5: fs_core: Make find_closest_ft more generic
  wifi: brcmfmac: Fix field-spanning write in brcmf_scan_params_v2_to_v1()
  vxlan: Fix nexthop hash size
  ip6mr: Fix skb_under_panic in ip6mr_cache_report()
  s390/qeth: Don't call dev_close/dev_open (DOWN/UP)
  net: tap_open(): set sk_uid from current_fsuid()
  net: tun_chr_open(): set sk_uid from current_fsuid()
  net: dcb: choose correct policy to parse DCB_ATTR_BCN
  ...
2023-08-03 14:00:02 -07:00
Stefano Garzarella
3c50c8b240 test/vsock: remove vsock_perf executable on make clean
We forgot to add vsock_perf to the rm command in the `clean`
target, so now we have a left over after `make clean` in
tools/testing/vsock.

Fixes: 8abbffd27c ("test/vsock: vsock_perf utility")
Cc: AVKrasnov@sberdevices.ru
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Link: https://lore.kernel.org/r/20230803085454.30897-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03 11:04:42 -07:00
Alexandre Ghiti
2569606720
selftests: riscv: Fix compilation error with vstate_exec_nolibc.c
The following error happens:

In file included from vstate_exec_nolibc.c:2:
/usr/include/riscv64-linux-gnu/sys/prctl.h:42:12: error: conflicting types for ‘prctl’; h
ave ‘int(int, ...)’
   42 | extern int prctl (int __option, ...) __THROW;
      |            ^~~~~
In file included from ./../../../../include/nolibc/nolibc.h:99,
                 from <command-line>:
./../../../../include/nolibc/sys.h:892:5: note: previous definition of ‘prctl’ with type
‘int(int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)
’
  892 | int prctl(int option, unsigned long arg2, unsigned long arg3,
      |     ^~~~~

Fix this by not including <sys/prctl.h>, which is not needed here since
prctl syscall is directly called using its number.

Fixes: 7cf6198ce2 ("selftests: Test RISC-V Vector prctl interface")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230713115829.110421-1-alexghiti@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-02 13:48:10 -07:00
John Hubbard
8c82d2bf59
selftests/riscv: fix potential build failure during the "emit_tests" step
The riscv selftests (which were modeled after the arm64 selftests) are
improperly declaring the "emit_tests" target to depend upon the "all"
target. This approach, when combined with commit 9fc96c7c19
("selftests: error out if kernel header files are not yet built"), has
caused build failures [1] on arm64, and is likely to cause similar
failures for riscv.

To fix this, simply remove the unnecessary "all" dependency from the
emit_tests target. The dependency is still effectively honored, because
again, invocation is via "install", which also depends upon "all".

An alternative approach would be to harden the emit_tests target so that
it can depend upon "all", but that's a lot more complicated and hard to
get right, and doesn't seem worth it, especially given that emit_tests
should probably not be overridden at all.

[1] https://lore.kernel.org/20230710-kselftest-fix-arm64-v1-1-48e872844f25@kernel.org

Fixes: 9fc96c7c19 ("selftests: error out if kernel header files are not yet built")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230712193514.740033-1-jhubbard@nvidia.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-02 13:47:47 -07:00
Kuniyuki Iwashima
3ff1617450 selftest: net: Assert on a proper value in so_incoming_cpu.c.
Dan Carpenter reported an error spotted by Smatch.

  ./tools/testing/selftests/net/so_incoming_cpu.c:163 create_clients()
  error: uninitialized symbol 'ret'.

The returned value of sched_setaffinity() should be checked with
ASSERT_EQ(), but the value was not saved in a proper variable,
resulting in an error above.

Let's save the returned value of with sched_setaffinity().

Fixes: 6df96146b2 ("selftest: Add test for SO_INCOMING_CPU.")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-kselftest/fe376760-33b6-4fc9-88e8-178e809af1ac@moroto.mountain/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230731181553.5392-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-01 15:02:58 -07:00
Ian Rogers
07d2b820fd perf test parse-events: Test complex name has required event format
test__checkevent_complex_name will use an "event" format which if not
present, such as with a placeholder PMU, will cause test failures. Skip
the test in this case to avoid failures in restricted environments.

Add perf_pmu__has_format utility as a general PMU utility.

Fixes: 628eaa4e87 ("perf pmus: Add placeholder core PMU")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230706183705.601412-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-01 00:32:00 -03:00
Ian Rogers
34bc65d6d8 perf pmus: Create placholder regardless of scanning core_only
If scanning all PMUs the placeholder is still necessary if no core PMU
is found. This situation occurs in perf test's parse-events test,
when uncore events appear before core.

Fixes: 628eaa4e87 ("perf pmus: Add placeholder core PMU")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230706183705.601412-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-01 00:30:06 -03:00
Kuniyuki Iwashima
e739718444 net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX.
syzkaller found zero division error [0] in div_s64_rem() called from
get_cycle_time_elapsed(), where sched->cycle_time is the divisor.

We have tests in parse_taprio_schedule() so that cycle_time will never
be 0, and actually cycle_time is not 0 in get_cycle_time_elapsed().

The problem is that the types of divisor are different; cycle_time is
s64, but the argument of div_s64_rem() is s32.

syzkaller fed this input and 0x100000000 is cast to s32 to be 0.

  @TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME={0xc, 0x8, 0x100000000}

We use s64 for cycle_time to cast it to ktime_t, so let's keep it and
set max for cycle_time.

While at it, we prevent overflow in setup_txtime() and add another
test in parse_taprio_schedule() to check if cycle_time overflows.

Also, we add a new tdc test case for this issue.

[0]:
divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 103 Comm: kworker/1:3 Not tainted 6.5.0-rc1-00330-g60cc1f7d0605 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:div_s64_rem include/linux/math64.h:42 [inline]
RIP: 0010:get_cycle_time_elapsed net/sched/sch_taprio.c:223 [inline]
RIP: 0010:find_entry_to_transmit+0x252/0x7e0 net/sched/sch_taprio.c:344
Code: 3c 02 00 0f 85 5e 05 00 00 48 8b 4c 24 08 4d 8b bd 40 01 00 00 48 8b 7c 24 48 48 89 c8 4c 29 f8 48 63 f7 48 99 48 89 74 24 70 <48> f7 fe 48 29 d1 48 8d 04 0f 49 89 cc 48 89 44 24 20 49 8d 85 10
RSP: 0018:ffffc90000acf260 EFLAGS: 00010206
RAX: 177450e0347560cf RBX: 0000000000000000 RCX: 177450e0347560cf
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000100000000
RBP: 0000000000000056 R08: 0000000000000000 R09: ffffed10020a0934
R10: ffff8880105049a7 R11: ffff88806cf3a520 R12: ffff888010504800
R13: ffff88800c00d800 R14: ffff8880105049a0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0edf84f0e8 CR3: 000000000d73c002 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
 <TASK>
 get_packet_txtime net/sched/sch_taprio.c:508 [inline]
 taprio_enqueue_one+0x900/0xff0 net/sched/sch_taprio.c:577
 taprio_enqueue+0x378/0xae0 net/sched/sch_taprio.c:658
 dev_qdisc_enqueue+0x46/0x170 net/core/dev.c:3732
 __dev_xmit_skb net/core/dev.c:3821 [inline]
 __dev_queue_xmit+0x1b2f/0x3000 net/core/dev.c:4169
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 neigh_resolve_output net/core/neighbour.c:1552 [inline]
 neigh_resolve_output+0x4a7/0x780 net/core/neighbour.c:1532
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0x924/0x17d0 net/ipv6/ip6_output.c:135
 __ip6_finish_output+0x620/0xaa0 net/ipv6/ip6_output.c:196
 ip6_finish_output net/ipv6/ip6_output.c:207 [inline]
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x206/0x410 net/ipv6/ip6_output.c:228
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK.constprop.0+0xea/0x260 include/linux/netfilter.h:303
 ndisc_send_skb+0x872/0xe80 net/ipv6/ndisc.c:508
 ndisc_send_ns+0xb5/0x130 net/ipv6/ndisc.c:666
 addrconf_dad_work+0xc14/0x13f0 net/ipv6/addrconf.c:4175
 process_one_work+0x92c/0x13a0 kernel/workqueue.c:2597
 worker_thread+0x60f/0x1240 kernel/workqueue.c:2748
 kthread+0x2fe/0x3f0 kernel/kthread.c:389
 ret_from_fork+0x2c/0x50 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:

Fixes: 4cfd5779bd ("taprio: Add support for txtime-assist mode")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Co-developed-by: Eric Dumazet <edumazet@google.com>
Co-developed-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-31 09:12:27 +01:00
Linus Torvalds
b0b9850e7d Probe fixes for 6.5-rc3:
- probe-events: Fix to add NULL check for some BTF API calls which can
   return error code and NULL.
 
 - ftrace selftests: Fix to check fprobe and kprobe event correctly. This
   fixes a miss condition of the test command.
 
 - kprobes: Prohibit probing on the function which starts from "__cfi_"
   and "__pfx_" since those are auto generated for kernel CFI and not
   executed.
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Merge tag 'probes-fixes-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probe fixes from Masami Hiramatsu:

 - probe-events: add NULL check for some BTF API calls which can return
   error code and NULL.

 - ftrace selftests: check fprobe and kprobe event correctly. This fixes
   a miss condition of the test command.

 - kprobes: do not allow probing functions that start with "__cfi_" or
   "__pfx_" since those are auto generated for kernel CFI and not
   executed.

* tag 'probes-fixes-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  kprobes: Prohibit probing on CFI preamble symbol
  selftests/ftrace: Fix to check fprobe event eneblement
  tracing/probes: Fix to add NULL check for BTF APIs
2023-07-30 11:27:22 -07:00
Linus Torvalds
98a05fe8cd x86:
* Do not register IRQ bypass consumer if posted interrupts not supported
 
 * Fix missed device interrupt due to non-atomic update of IRR
 
 * Use GFP_KERNEL_ACCOUNT for pid_table in ipiv
 
 * Make VMREAD error path play nice with noinstr
 
 * x86: Acquire SRCU read lock when handling fastpath MSR writes
 
 * Support linking rseq tests statically against glibc 2.35+
 
 * Fix reference count for stats file descriptors
 
 * Detect userspace setting invalid CR0
 
 Non-KVM:
 
 * Remove coccinelle script that has caused multiple confusion
   ("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage",
   acked by Greg)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86:

   - Do not register IRQ bypass consumer if posted interrupts not
     supported

   - Fix missed device interrupt due to non-atomic update of IRR

   - Use GFP_KERNEL_ACCOUNT for pid_table in ipiv

   - Make VMREAD error path play nice with noinstr

   - x86: Acquire SRCU read lock when handling fastpath MSR writes

   - Support linking rseq tests statically against glibc 2.35+

   - Fix reference count for stats file descriptors

   - Detect userspace setting invalid CR0

  Non-KVM:

   - Remove coccinelle script that has caused multiple confusion
     ("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE()
     usage", acked by Greg)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
  KVM: selftests: Expand x86's sregs test to cover illegal CR0 values
  KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest
  KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid
  Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"
  KVM: selftests: Verify stats fd is usable after VM fd has been closed
  KVM: selftests: Verify stats fd can be dup()'d and read
  KVM: selftests: Verify userspace can create "redundant" binary stats files
  KVM: selftests: Explicitly free vcpus array in binary stats test
  KVM: selftests: Clean up stats fd in common stats_test() helper
  KVM: selftests: Use pread() to read binary stats header
  KVM: Grab a reference to KVM for VM and vCPU stats file descriptors
  selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
  Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"
  KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes
  KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path
  KVM: VMX: Make VMREAD error path play nice with noinstr
  KVM: x86/irq: Conditionally register IRQ bypass consumer again
  KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv
  KVM: x86: check the kvm_cpu_get_interrupt result before using it
  KVM: x86: VMX: set irr_pending in kvm_apic_update_irr
  ...
2023-07-30 11:19:08 -07:00
Sean Christopherson
5a7591176c KVM: selftests: Expand x86's sregs test to cover illegal CR0 values
Add coverage to x86's set_sregs_test to verify KVM rejects vendor-agnostic
illegal CR0 values, i.e. CR0 values whose legality doesn't depend on the
current VMX mode.  KVM historically has neglected to reject bad CR0s from
userspace, i.e. would happily accept a completely bogus CR0 via
KVM_SET_SREGS{2}.

Punt VMX specific subtests to future work, as they would require quite a
bit more effort, and KVM gets coverage for CR0 checks in general through
other means, e.g. KVM-Unit-Tests.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:32 -04:00
Sean Christopherson
211c0189ea KVM: selftests: Verify stats fd is usable after VM fd has been closed
Verify that VM and vCPU binary stats files are usable even after userspace
has put its last direct reference to the VM.  This is a regression test
for a UAF bug where KVM didn't gift the stats files a reference to the VM.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:30 -04:00
Sean Christopherson
65f1f57f35 KVM: selftests: Verify stats fd can be dup()'d and read
Expand the binary stats test to verify that a stats fd can be dup()'d
and read, to (very) roughly simulate userspace passing around the file.
Adding the dup() test is primarily an intermediate step towards verifying
that userspace can read VM/vCPU stats before _and_ after userspace closes
its copy of the VM fd; the dup() test itself is only mildly interesting.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:30 -04:00
Sean Christopherson
47d1be8a78 KVM: selftests: Verify userspace can create "redundant" binary stats files
Verify that KVM doesn't artificially limit KVM_GET_STATS_FD to a single
file per VM/vCPU.  There's no known use case for getting multiple stats
fds, but it should work, and more importantly creating multiple files will
make it easier to test that KVM correct manages VM refcounts for stats
files.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:30 -04:00
Sean Christopherson
33b0270407 KVM: selftests: Explicitly free vcpus array in binary stats test
Explicitly free the all-encompassing vcpus array in the binary stats test
so that the test is consistent with respect to freeing all dynamically
allocated resources (versus letting them be freed on exit).

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:29 -04:00
Sean Christopherson
87d53582bc KVM: selftests: Clean up stats fd in common stats_test() helper
Move the stats fd cleanup code into stats_test() and drop the
superfluous vm_stats_test() and vcpu_stats_test() helpers in order to
decouple creation of the stats file from consuming/testing the file
(deduping code is a bonus).  This will make it easier to test various
edge cases related to stats, e.g. that userspace can dup() a stats fd,
that userspace can have multiple stats files for a singleVM/vCPU, etc.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:29 -04:00
Sean Christopherson
625646aede KVM: selftests: Use pread() to read binary stats header
Use pread() with an explicit offset when reading the header and the header
name for a binary stats fd so that the common helper and the binary stats
test don't subtly rely on the file effectively being untouched, e.g. to
allow multiple reads of the header, name, etc.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:28 -04:00
Sean Christopherson
3bcbc20942 selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
To allow running rseq and KVM's rseq selftests as statically linked
binaries, initialize the various "trampoline" pointers to point directly
at the expect glibc symbols, and skip the dlysm() lookups if the rseq
size is non-zero, i.e. the binary is statically linked *and* the libc
registered its own rseq.

Define weak versions of the symbols so as not to break linking against
libc versions that don't support rseq in any capacity.

The KVM selftests in particular are often statically linked so that they
can be run on targets with very limited runtime environments, i.e. test
machines.

Fixes: 233e667e1a ("selftests/rseq: Uplift rseq selftests for compatibility with glibc-2.35")
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: kvm@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721223352.2333911-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-07-29 11:05:28 -04:00
Georg Müller
98ce8e4a9d perf test uprobe_from_different_cu: Skip if there is no gcc
Without gcc, the test will fail.

On cleanup, ignore probe removal errors. Otherwise, in case of an error
adding the probe, the temporary directory is not removed.

Fixes: 56cbeacf14 ("perf probe: Add test for regression introduced by switch to die_get_decl_file()")
Signed-off-by: Georg Müller <georgmueller@gmx.net>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Georg Müller <georgmueller@gmx.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230728151812.454806-2-georgmueller@gmx.net
Link: https://lore.kernel.org/r/CAP-5=fUP6UuLgRty3t2=fQsQi3k4hDMz415vWdp1x88QMvZ8ug@mail.gmail.com/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-28 15:31:21 -03:00
Linus Torvalds
f24767ca4f cxl fixes for v6.5-rc4
- Update MAINTAINERS for cxl
 
 - A few static analysis fixes
 
 - Fix a Kconfig dependency for CONFIG_FW_LOADER
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Merge tag 'cxl-fixes-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fixes from Vishal Verma:

 - Update MAINTAINERS for cxl

 - A few static analysis fixes

 - Fix a Kconfig dependency for CONFIG_FW_LOADER

* tag 'cxl-fixes-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  tools/testing/cxl: Remove unused SZ_512G macro
  cxl/acpi: Return 'rc' instead of '0' in cxl_parse_cfmws()
  cxl/acpi: Fix a use-after-free in cxl_parse_cfmws()
  cxl: Update MAINTAINERS
  cxl/mem: Fix a double shift bug
  cxl: fix CONFIG_FW_LOADER dependency
2023-07-28 09:50:04 -07:00
Linus Torvalds
57012c5753 Networking fixes for 6.5-rc4, including fixes from can, netfilter
Current release - regressions:
 
   - core: fix splice_to_socket() for O_NONBLOCK socket
 
   - af_unix: fix fortify_panic() in unix_bind_bsd().
 
   - can: raw: fix lockdep issue in raw_release()
 
 Previous releases - regressions:
 
   - tcp: reduce chance of collisions in inet6_hashfn().
 
   - netfilter: skip immediate deactivate in _PREPARE_ERROR
 
   - tipc: stop tipc crypto on failure in tipc_node_create
 
   - eth: igc: fix kernel panic during ndo_tx_timeout callback
 
   - eth: iavf: fix potential deadlock on allocation failure
 
 Previous releases - always broken:
 
   - ipv6: fix bug where deleting a mngtmpaddr can create a new temporary address
 
   - eth: ice: fix memory management in ice_ethtool_fdir.c
 
   - eth: hns3: fix the imp capability bit cannot exceed 32 bits issue
 
   - eth: vxlan: calculate correct header length for GPE
 
   - eth: stmmac: apply redundant write work around on 4.xx too
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can, netfilter.

  Current release - regressions:

   - core: fix splice_to_socket() for O_NONBLOCK socket

   - af_unix: fix fortify_panic() in unix_bind_bsd().

   - can: raw: fix lockdep issue in raw_release()

  Previous releases - regressions:

   - tcp: reduce chance of collisions in inet6_hashfn().

   - netfilter: skip immediate deactivate in _PREPARE_ERROR

   - tipc: stop tipc crypto on failure in tipc_node_create

   - eth: igc: fix kernel panic during ndo_tx_timeout callback

   - eth: iavf: fix potential deadlock on allocation failure

  Previous releases - always broken:

   - ipv6: fix bug where deleting a mngtmpaddr can create a new
     temporary address

   - eth: ice: fix memory management in ice_ethtool_fdir.c

   - eth: hns3: fix the imp capability bit cannot exceed 32 bits issue

   - eth: vxlan: calculate correct header length for GPE

   - eth: stmmac: apply redundant write work around on 4.xx too"

* tag 'net-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits)
  tipc: stop tipc crypto on failure in tipc_node_create
  af_unix: Terminate sun_path when bind()ing pathname socket.
  tipc: check return value of pskb_trim()
  benet: fix return value check in be_lancer_xmit_workarounds()
  virtio-net: fix race between set queues and probe
  net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64
  splice, net: Fix splice_to_socket() for O_NONBLOCK socket
  net: fec: tx processing does not call XDP APIs if budget is 0
  mptcp: more accurate NL event generation
  selftests: mptcp: join: only check for ip6tables if needed
  tools: ynl-gen: fix parse multi-attr enum attribute
  tools: ynl-gen: fix enum index in _decode_enum(..)
  netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID
  netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR
  netfilter: nft_set_rbtree: fix overlap expiration walk
  igc: Fix Kernel Panic during ndo_tx_timeout callback
  net: dsa: qca8k: fix mdb add/del case with 0 VID
  net: dsa: qca8k: fix broken search_and_del
  net: dsa: qca8k: fix search_and_insert wrong handling of new rule
  net: dsa: qca8k: enable use_single_write for qca8xxx
  ...
2023-07-27 12:27:37 -07:00
Ian Rogers
b161f25fa3 perf parse-events: Only move force grouped evsels when sorting
Prior to this change, events without a group would be sorted as if they
were from the location of the first event without a group. For example
instructions and cycles are without a group:

  instructions,{imc_free_running/data_read/,imc_free_running/data_write/},cycles

parse events would create an eventual evlist like:

  instructions,cycles,{uncore_imc_free_running_0/data_read/,uncore_imc_free_running_1/data_read/,uncore_imc_free_running_0/data_write/,uncore_imc_free_running_1/data_write/}

This is done so that perf metric events, that must always be in a
group, will be adjacent and so can be forced into a group.

This change modifies the sorting so that only force grouped events,
like perf metrics, are sorted and all other events keep their position
with respect to groups in the evlist. The location of the force
grouped event is chosen to match the first force grouped event.

For architectures without force grouped events, ie anything not Intel
Icelake or newer, this should mean sorting and fixing doesn't modify
the event positions except when fixing the grouping for PMUs of things
like uncore events.

Fixes: 347c2f0a09 ("perf parse-events: Sort and group parsed events")
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230719001836.198363-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-27 10:32:12 -03:00
Ian Rogers
e8d38345da perf parse-events: When fixing group leaders always set the leader
The evsel grouping fix iterates over evsels tracking the leader group
and the current position's group, updating the current position's leader
if an evsel is being forced into a group or groups changed. However,
groups changing isn't a sufficient condition as sorting may have
reordered events and the leader may no longer come first. For this
reason update all leaders whenever they disagree.

This change breaks certain Icelake+ metrics due to bugs in the
kernel. For example, tma_l3_bound with threshold enabled tries to
program the events:

  {topdown-retiring,slots,CYCLE_ACTIVITY.STALLS_L2_MISS,topdown-fe-bound,EXE_ACTIVITY.BOUND_ON_STORES,EXE_ACTIVITY.1_PORTS_UTIL,topdown-be-bound,cpu/INT_MISC.RECOVERY_CYCLES,cmask=1,edge/,CYCLE_ACTIVITY.STALLS_L3_MISS,CPU_CLK_UNHALTED.THREAD,CYCLE_ACTIVITY.STALLS_MEM_ANY,EXE_ACTIVITY.2_PORTS_UTIL,CYCLE_ACTIVITY.STALLS_TOTAL,topdown-bad-spec}:W

fixing the perf metric event order gives:

  {slots,topdown-retiring,topdown-fe-bound,topdown-be-bound,topdown-bad-spec,CYCLE_ACTIVITY.STALLS_L2_MISS,EXE_ACTIVITY.BOUND_ON_STORES,EXE_ACTIVITY.1_PORTS_UTIL,cpu/INT_MISC.RECOVERY_CYCLES,cmask=1,edge/,CYCLE_ACTIVITY.STALLS_L3_MISS,CPU_CLK_UNHALTED.THREAD,CYCLE_ACTIVITY.STALLS_MEM_ANY,EXE_ACTIVITY.2_PORTS_UTIL,CYCLE_ACTIVITY.STALLS_TOTAL}:W

Both of these return "<not counted>" for all events, whilst they work
with the group removed respecting that the perf metric events must still
be grouped. A vendor events update will need to add METRIC_NO_GROUP to
these metrics to workaround the kernel PMU driver issue.

Fixes: a90cc5a9ee ("perf evsel: Don't let evsel__group_pmu_name() traverse unsorted group")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230719001836.198363-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-27 10:31:32 -03:00
Ian Rogers
5c49b6c3f2 perf parse-events: Extra care around force grouped events
Perf metric (topdown) events on Intel Icelake+ machines require a
group, however, they may be next to events that don't require a group.
Consider:

  cycles,slots,topdown-fe-bound

The cycles event needn't be grouped but slots and topdown-fe-bound need
grouping.

Prior to this change, as slots and topdown-fe-bound need a group forcing
and all events share the same PMU, slots and topdown-fe-bound would be
forced into a group with cycles.

This is a bug on two fronts, cycles wasn't supposed to be grouped and
cycles can't be a group leader with a perf metric event.

This change adds recognition that cycles isn't force grouped and so it
shouldn't be force grouped with slots and topdown-fe-bound.

Fixes: a90cc5a9ee ("perf evsel: Don't let evsel__group_pmu_name() traverse unsorted group")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230719001836.198363-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-27 10:27:12 -03:00
Borislav Petkov (AMD)
fb3bd914b3 x86/srso: Add a Speculative RAS Overflow mitigation
Add a mitigation for the speculative return address stack overflow
vulnerability found on AMD processors.

The mitigation works by ensuring all RET instructions speculate to
a controlled location, similar to how speculation is controlled in the
retpoline sequence.  To accomplish this, the __x86_return_thunk forces
the CPU to mispredict every function return using a 'safe return'
sequence.

To ensure the safety of this mitigation, the kernel must ensure that the
safe return sequence is itself free from attacker interference.  In Zen3
and Zen4, this is accomplished by creating a BTB alias between the
untraining function srso_untrain_ret_alias() and the safe return
function srso_safe_ret_alias() which results in evicting a potentially
poisoned BTB entry and using that safe one for all function returns.

In older Zen1 and Zen2, this is accomplished using a reinterpretation
technique similar to Retbleed one: srso_untrain_ret() and
srso_safe_ret().

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2023-07-27 11:07:14 +02:00
Matthieu Baerts
016e7ba47f selftests: mptcp: join: only check for ip6tables if needed
If 'iptables-legacy' is available, 'ip6tables-legacy' command will be
used instead of 'ip6tables'. So no need to look if 'ip6tables' is
available in this case.

Cc: stable@vger.kernel.org
Fixes: 0c4cd3f86a ("selftests: mptcp: join: use 'iptables-legacy' if available")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20230725-send-net-20230725-v1-1-6f60fe7137a9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-26 16:48:54 -07:00
Arkadiusz Kubalewski
df15c15e6c tools: ynl-gen: fix parse multi-attr enum attribute
When attribute is enum type and marked as multi-attr, the netlink
respond is not parsed, fails with stack trace:
Traceback (most recent call last):
  File "/net-next/tools/net/ynl/./test.py", line 520, in <module>
    main()
  File "/net-next/tools/net/ynl/./test.py", line 488, in main
    dplls=dplls_get(282574471561216)
  File "/net-next/tools/net/ynl/./test.py", line 48, in dplls_get
    reply=act(args)
  File "/net-next/tools/net/ynl/./test.py", line 41, in act
    reply = ynl.dump(args.dump, attrs)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 598, in dump
    return self._op(method, vals, dump=True)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 584, in _op
    rsp_msg = self._decode(gm.raw_attrs, op.attr_set.name)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 451, in _decode
    self._decode_enum(rsp, attr_spec)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 408, in _decode_enum
    value = enum.entries_by_val[raw].name
TypeError: unhashable type: 'list'
error: 1

Redesign _decode_enum(..) to take a enum int value and translate
it to either a bitmask or enum name as expected.

Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230725101642.267248-3-arkadiusz.kubalewski@intel.com
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-26 13:38:23 -07:00
Arkadiusz Kubalewski
d7ddf5f426 tools: ynl-gen: fix enum index in _decode_enum(..)
Remove wrong index adjustment, which is leftover from adding
support for sparse enums.
enum.entries_by_val() function shall not subtract the start-value, as
it is indexed with real enum value.

Fixes: c311aaa74c ("tools: ynl: fix enum-as-flags in the generic CLI")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230725101642.267248-2-arkadiusz.kubalewski@intel.com
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-26 13:38:23 -07:00
Masami Hiramatsu (Google)
02ab7234fc selftests/ftrace: Fix to check fprobe event eneblement
Fix to check the availability of fprobe and kprobes for
add_remove_btfarg.tc.
Only if both kprobe and fprobe are not supported, it should return
"unsupported".

Link: https://lore.kernel.org/all/169024904889.395371.17998733386857387118.stgit@devnote2/

Fixes: 4231f30fcc ("selftests/ftrace: Add BTF arguments test cases")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-26 12:54:17 +09:00
Athira Rajeev
341e0e9f59 perf callchain powerpc: Fix addr location init during arch_skip_callchain_idx function
'perf record;  with callchain recording fails as below
in powerpc:

    ./perf record -a -gR sleep 10
    ./perf report
    perf: Segmentation fault

gdb trace points to thread__find_map

    0  0x00000000101df314 in atomic_cmpxchg (newval=1818846826, oldval=1818846827, v=0x1001a8f3) at /home/athira/linux/tools/include/asm-generic/atomic-gcc.h:70
    1  refcount_sub_and_test (i=1, r=0x1001a8f3) at /home/athira/linux/tools/include/linux/refcount.h:135
    2  refcount_dec_and_test (r=0x1001a8f3) at /home/athira/linux/tools/include/linux/refcount.h:148
    3  map__put (map=0x1001a8b3) at util/map.c:311
    4  0x000000001016842c in __map__zput (map=0x7fffffffa368) at util/map.h:190
    5  thread__find_map (thread=0x105b92f0, cpumode=<optimized out>, addr=13835058055283572736, al=al@entry=0x7fffffffa358) at util/event.c:582
    6  0x000000001016882c in thread__find_symbol (thread=<optimized out>, cpumode=<optimized out>, addr=<optimized out>, al=0x7fffffffa358) at util/event.c:656
    7  0x00000000102e12b4 in arch_skip_callchain_idx (thread=<optimized out>, chain=<optimized out>) at arch/powerpc/util/skip-callchain-idx.c:255
    8  0x00000000101d3bf4 in thread__resolve_callchain_sample (thread=0x105b92f0, cursor=0x1053d160, evsel=<optimized out>, sample=0x7fffffffa908, parent=0x7fffffffa778, root_al=0x7fffffffa710,
        max_stack=<optimized out>) at util/machine.c:2940
    9  0x00000000101cd210 in sample__resolve_callchain (sample=<optimized out>, cursor=<optimized out>, parent=<optimized out>, evsel=<optimized out>, al=<optimized out>, max_stack=<optimized out>)
        at util/callchain.c:1112
    10 0x000000001022a9d8 in hist_entry_iter__add (iter=0x7fffffffa750, al=0x7fffffffa710, max_stack_depth=<optimized out>, arg=0x7fffffffbbd0) at util/hist.c:1232
    11 0x0000000010056d98 in process_sample_event (tool=0x7fffffffbbd0, event=0x7ffff6223c38, sample=0x7fffffffa908, evsel=<optimized out>, machine=0x10524ef8) at builtin-report.c:332

Here arch_skip_callchain_idx calls thread__find_symbol and which
invokes thread__find_map with uninitialised "addr_location".
Snippet:

thread__find_symbol(thread, PERF_RECORD_MISC_USER, ip, &al);

Recent change with commit 0dd5041c9a ("perf addr_location: Add
init/exit/copy functions") , introduced "maps__zput" in the function
thread__find_map. This could result in segfault while accessing
uninitialised map from "struct addr_location". Fix this by adding
addr_location__init and addr_location__exit in arch_skip_callchain_idx.

Fixes: 0dd5041c9a ("perf addr_location: Add init/exit/copy functions")
Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20230724165815.17810-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-24 17:46:11 -03:00
Haixin Yu
9754353d0a perf pmu arm64: Fix reading the PMU cpu slots in sysfs
Commit f8ad6018ce ("perf pmu: Remove duplication around
EVENT_SOURCE_DEVICE_PATH") uses sysfs__read_ull() to read a full sysfs
path, which will never succeeds as it already comes with the sysfs mount
point in it, which sysfs__read_ull() will add again.

Fix it by reading the file using filename__read_ull(), that will not add
the sysfs mount point.

Fixes: f8ad6018ce ("perf pmu: Remove duplication around EVENT_SOURCE_DEVICE_PATH")
Signed-off-by: Haixin Yu <yuhaixin.yhx@linux.alibaba.com>
Tested-by: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/ZL4G7rWXkfv-Ectq@B-Q60VQ05P-2326.local
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-24 13:40:52 -03:00
Ani Sinha
ed0cf84e9c vmbus_testing: fix wrong python syntax for integer value comparison
It is incorrect in python to compare integer values using the "is" keyword.
The "is" keyword in python is used to compare references to two objects,
not their values. Newer version of python3 (version 3.8) throws a warning
when such incorrect comparison is made. For value comparison, "==" should
be used.

Fix this in the code and suppress the following warning:

/usr/sbin/vmbus_testing:167: SyntaxWarning: "is" with a literal. Did you mean "=="?

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20230705134408.6302-1-anisinha@redhat.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
2023-07-23 23:19:30 +00:00
Linus Torvalds
3c05547a5f sound fixes for 6.5-rc3
A pile of fixes that have been gathered since the previous PR.
 Most of changes are device-specific, and nothing looks too scary.
 
 - A memory leak fix in ALSA sequencer code in 6.5-rc
 - Many fixes for ASoC Qualcomm CODEC drivers, covering SoundWire probe
   problems
 - A series of ASoC AMD fixes
 - A few fixes and cleanups of selftest stuff
 - HD-audio codec fixes and quirks for Clevo, HP, Lenovo, Dell
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Merge tag 'sound-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A pile of fixes that have been gathered since the previous pull. Most
  of changes are device-specific, and nothing looks too scary.

   - A memory leak fix in ALSA sequencer code in 6.5-rc

   - Many fixes for ASoC Qualcomm CODEC drivers, covering SoundWire
     probe problems

   - A series of ASoC AMD fixes

   - A few fixes and cleanups of selftest stuff

   - HD-audio codec fixes and quirks for Clevo, HP, Lenovo, Dell"

* tag 'sound-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (52 commits)
  ALSA: hda/realtek: Add support for DELL Oasis 13/14/16 laptops
  ALSA: hda/realtek: Fix generic fixup definition for cs35l41 amp
  ALSA: hda/realtek: Enable Mute LED on HP Laptop 15s-eq2xxx
  selftests: ALSA: Add test-pcmtest-driver to .gitignore
  ALSA: hda/realtek: Add quirk for Clevo NS70AU
  ASoC: fsl_sai: Disable bit clock with transmitter
  ALSA: seq: Fix memory leak at error path in snd_seq_create_port()
  ASoC: SOF: ipc3-dtrace: uninitialized data in dfsentry_trace_filter_write()
  ASoC: cs42l51: fix driver to properly autoload with automatic module loading
  MAINTAINERS: Redo addition of ssm3515 to APPLE SOUND
  ASoC: rt5640: Fix the issue of speaker noise
  ALSA: hda/realtek - remove 3k pull low procedure
  selftests: ALSA: Fix fclose on an already fclosed file pointer
  ALSA: pcmtest: Don't use static storage to track per device data
  ALSA: pcmtest: Convert to platform remove callback returning void
  ASoC: dt-bindings: audio-graph-card2: Drop incomplete example
  ASoC: dt-bindings: Update maintainer email id
  ASoC: amd: ps: Fix extraneous error messages
  ASoC: fsl_sai: Revert "ASoC: fsl_sai: Enable MCTL_MCLK_EN bit for master mode"
  ASoC: codecs: SND_SOC_WCD934X should select REGMAP_IRQ
  ...
2023-07-21 10:10:18 -07:00
Xiao Yang
70d49bbf96 tools/testing/cxl: Remove unused SZ_512G macro
SZ_512G macro has become useless since commit b2f3b74e10
("tools/testing/cxl: Move cxl_test resources to the top of memory")
so remove it directly.

Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Link: https://lore.kernel.org/r/20230719163103.3392-1-yangx.jy@fujitsu.com
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
2023-07-20 23:35:22 -06:00
Linus Torvalds
57f1f9dd3a Including fixes from BPF, netfilter, bluetooth and CAN.
Current release - regressions:
 
  - eth: r8169: multiple fixes for PCIe ASPM-related problems
 
  - vrf: fix RCU lockdep splat in output path
 
 Previous releases - regressions:
 
  - gso: fall back to SW segmenting with GSO_UDP_L4 dodgy bit set
 
  - dsa: mv88e6xxx: do a final check before timing out when polling
 
  - nf_tables: fix sleep in atomic in nft_chain_validate
 
 Previous releases - always broken:
 
  - sched: fix undoing tcf_bind_filter() in multiple classifiers
 
  - bpf, arm64: fix BTI type used for freplace attached functions
 
  - can: gs_usb: fix time stamp counter initialization
 
  - nft_set_pipapo: fix improper element removal (leading to UAF)
 
 Misc:
 
  - net: support STP on bridge in non-root netns, STP prevents
    packet loops so not supporting it results in freezing systems
    of unsuspecting users, and in turn very upset noises being made
 
  - fix kdoc warnings
 
  - annotate various bits of TCP state to prevent data races
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from BPF, netfilter, bluetooth and CAN.

  Current release - regressions:

   - eth: r8169: multiple fixes for PCIe ASPM-related problems

   - vrf: fix RCU lockdep splat in output path

  Previous releases - regressions:

   - gso: fall back to SW segmenting with GSO_UDP_L4 dodgy bit set

   - dsa: mv88e6xxx: do a final check before timing out when polling

   - nf_tables: fix sleep in atomic in nft_chain_validate

  Previous releases - always broken:

   - sched: fix undoing tcf_bind_filter() in multiple classifiers

   - bpf, arm64: fix BTI type used for freplace attached functions

   - can: gs_usb: fix time stamp counter initialization

   - nft_set_pipapo: fix improper element removal (leading to UAF)

  Misc:

   - net: support STP on bridge in non-root netns, STP prevents packet
     loops so not supporting it results in freezing systems of
     unsuspecting users, and in turn very upset noises being made

   - fix kdoc warnings

   - annotate various bits of TCP state to prevent data races"

* tag 'net-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits)
  net: phy: prevent stale pointer dereference in phy_init()
  tcp: annotate data-races around fastopenq.max_qlen
  tcp: annotate data-races around icsk->icsk_user_timeout
  tcp: annotate data-races around tp->notsent_lowat
  tcp: annotate data-races around rskq_defer_accept
  tcp: annotate data-races around tp->linger2
  tcp: annotate data-races around icsk->icsk_syn_retries
  tcp: annotate data-races around tp->keepalive_probes
  tcp: annotate data-races around tp->keepalive_intvl
  tcp: annotate data-races around tp->keepalive_time
  tcp: annotate data-races around tp->tsoffset
  tcp: annotate data-races around tp->tcp_tx_delay
  Bluetooth: MGMT: Use correct address for memcpy()
  Bluetooth: btusb: Fix bluetooth on Intel Macbook 2014
  Bluetooth: SCO: fix sco_conn related locking and validity issues
  Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link
  Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
  Bluetooth: coredump: fix building with coredump disabled
  Bluetooth: ISO: fix iso_conn related locking and validity issues
  Bluetooth: hci_event: call disconnect callback before deleting conn
  ...
2023-07-20 14:46:39 -07:00
Takashi Iwai
5f69c65e07 ASoC: Fixes for v6.5
A few more fixes for v6.5, just small driver specific ones.
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Merge tag 'asoc-fix-v6.5-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.5

A few more fixes for v6.5, just small driver specific ones.
2023-07-20 15:16:11 +02:00
Jakub Kicinski
e80698b7f8 for-netdev
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Alexei Starovoitov says:

====================
pull-request: bpf 2023-07-19

We've added 4 non-merge commits during the last 1 day(s) which contain
a total of 3 files changed, 55 insertions(+), 10 deletions(-).

The main changes are:

1) Fix stack depth check in presence of async callbacks,
   from Kumar Kartikeya Dwivedi.

2) Fix BTI type used for freplace attached functions,
   from Alexander Duyck.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, arm64: Fix BTI type used for freplace attached functions
  selftests/bpf: Add more tests for check_max_stack_depth bug
  bpf: Repeat check_max_stack_depth for async callbacks
  bpf: Fix subprog idx logic in check_max_stack_depth
====================

Link: https://lore.kernel.org/r/20230719174502.74023-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-19 15:01:10 -07:00
Takashi Iwai
a2a93f4e2f selftests: ALSA: Add test-pcmtest-driver to .gitignore
It was forgotten to add the new binary to .gitignore.  Let's fix it.

Fixes: 10b98a4db1 ("selftests: ALSA: Add test for the 'pcmtest' driver")
Link: https://lore.kernel.org/r/20230719114336.18409-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-19 15:25:03 +02:00
Matthieu Baerts
031c99e71f selftests: tc: add ConnTrack procfs kconfig
When looking at the TC selftest reports, I noticed one test was failing
because /proc/net/nf_conntrack was not available.

  not ok 373 3992 - Add ct action triggering DNAT tuple conflict
  	Could not match regex pattern. Verify command output:
  cat: /proc/net/nf_conntrack: No such file or directory

It is only available if NF_CONNTRACK_PROCFS kconfig is set. So the issue
can be fixed simply by adding it to the list of required kconfig.

Fixes: e469056413 ("tc-testing: add test for ct DNAT tuple collision")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/ [1]
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-3-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-18 16:52:12 -07:00
Matthieu Baerts
719b4774a8 selftests: tc: add 'ct' action kconfig dep
When looking for something else in LKFT reports [1], I noticed most of
the tests were skipped because the "teardown stage" did not complete
successfully.

Pedro found out this is due to the fact CONFIG_NF_FLOW_TABLE is required
but not listed in the 'config' file. Adding it to the list fixes the
issues on LKFT side. CONFIG_NET_ACT_CT is now set to 'm' in the final
kconfig.

Fixes: c34b961a24 ("net/sched: act_ct: Create nf flow table per zone")
Cc: stable@vger.kernel.org
Link: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230711/testrun/18267241/suite/kselftest-tc-testing/test/tc-testing_tdc_sh/log [1]
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/ [2]
Suggested-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-2-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-18 16:52:12 -07:00
Matthieu Baerts
fda05798c2 selftests: tc: set timeout to 15 minutes
When looking for something else in LKFT reports [1], I noticed that the
TC selftest ended with a timeout error:

  not ok 1 selftests: tc-testing: tdc.sh # TIMEOUT 45 seconds

The timeout had been introduced 3 years ago, see the Fixes commit below.

This timeout is only in place when executing the selftests via the
kselftests runner scripts. I guess this is not what most TC devs are
using and nobody noticed the issue before.

The new timeout is set to 15 minutes as suggested by Pedro [2]. It looks
like it is plenty more time than what it takes in "normal" conditions.

Fixes: 852c8cbf34 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")
Cc: stable@vger.kernel.org
Link: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230711/testrun/18267241/suite/kselftest-tc-testing/test/tc-testing_tdc_sh/log [1]
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/ [2]
Suggested-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-1-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-18 16:52:11 -07:00
Kumar Kartikeya Dwivedi
824adae453 selftests/bpf: Add more tests for check_max_stack_depth bug
Another test which now exercies the path of the verifier where it will
explore call chains rooted at the async callback. Without the prior
fixes, this program loads successfully, which is incorrect.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230717161530.1238-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-18 15:21:09 -07:00
Linus Torvalds
ccff6d117d perf tools fixes for v6.5:
- Don't group events when computing metrics that require more than the
   maximum number of simultaneously enabled events on AMD systems.
 
 - Fix multi CU handling in 'perf probe', add a 'perf test' entry to regress
   test it.
 
 - Make the 'perf test task_exit' stop generating samples by using the
   'dummy' event, all it is testing is if a PERF_RECORD_EXIT is generated
   at the end of a perf session. This makes this perf test to stop
   sometimes failing on some systems due to a full ring buffer.
 
 - Avoid SEGV if PMU lookup fails for legacy cache terms.
 
 - Fix libsubcmd SEGV/use-after-free when commands aren't excluded.
 
 - Fix OpenCSD (ARM64's CoreSight hardware tracing) library path resolution when
   specifying CSLIBS= in the make command line.
 
 - Fix broken feature check for libtracefs due to external lib changes,
   use the provided pkgconfig file instead future proof it.
 
 - Sync drm, fcntl, kvm, mount, prctl, socket, vhost, asound, arm64's
   cputype headers with the kernel sources, in some cases this made the
   tools become aware of new kernel APIs such as ioctls and the cachestat
   sysctl.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.5-1-2023-07-18' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Don't group events when computing metrics that require more than the
   maximum number of simultaneously enabled events on AMD systems.

 - Fix multi CU handling in 'perf probe', add a 'perf test' entry to
   regress test it.

 - Make the 'perf test task_exit' stop generating samples by using the
   'dummy' event, all it is testing is if a PERF_RECORD_EXIT is
   generated at the end of a perf session. This makes this perf test to
   stop sometimes failing on some systems due to a full ring buffer.

 - Avoid SEGV if PMU lookup fails for legacy cache terms.

 - Fix libsubcmd SEGV/use-after-free when commands aren't excluded.

 - Fix OpenCSD (ARM64's CoreSight hardware tracing) library path
   resolution when specifying CSLIBS= in the make command line.

 - Fix broken feature check for libtracefs due to external lib changes,
   use the provided pkgconfig file instead future proof it.

 - Sync drm, fcntl, kvm, mount, prctl, socket, vhost, asound, arm64's
   cputype headers with the kernel sources, in some cases this made the
   tools become aware of new kernel APIs such as ioctls and the
   cachestat sysctl.

* tag 'perf-tools-fixes-for-v6.5-1-2023-07-18' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT
  tools headers arm64: Sync arm64's cputype.h with the kernel sources
  tools include UAPI: Sync the sound/asound.h copy with the kernel sources
  tools include UAPI: Sync linux/vhost.h with the kernel sources
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf parse-events: Avoid SEGV if PMU lookup fails for legacy cache terms
  libsubcmd: Avoid SEGV/use-after-free when commands aren't excluded
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf build: Fix broken feature check for libtracefs due to external lib changes
  tools include UAPI: Sync linux/mount.h copy with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers uapi: Sync linux/fcntl.h with the kernel sources
  perf vendor events amd: Fix large metrics
  perf build: Fix library not found error when using CSLIBS
  tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  perf probe: Read DWARF files from the correct CU
  perf probe: Add test for regression introduced by switch to die_get_decl_file()
2023-07-18 14:51:29 -07:00
Linus Torvalds
4806364acf Seven hotfixes, six of which are cc:stable and one of which addresses a
post-6.5 issue.
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Merge tag 'mm-hotfixes-stable-2023-07-18-12-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Seven hotfixes, six of which are cc:stable and one of which addresses
  a post-6.5 issue"

* tag 'mm-hotfixes-stable-2023-07-18-12-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  maple_tree: fix node allocation testing on 32 bit
  maple_tree: fix 32 bit mas_next testing
  selftests/mm: mkdirty: fix incorrect position of #endif
  maple_tree: set the node limit when creating a new root node
  mm/mlock: fix vma iterator conversion of apply_vma_lock_flags()
  prctl: move PR_GET_AUXV out of PR_MCE_KILL
  selftests/mm: give scripts execute permission
2023-07-18 14:19:42 -07:00