Commit Graph

1281120 Commits

Author SHA1 Message Date
Oscar Salvador
6584a14a37 mm/hugetlb: drop node_alloc_noretry from alloc_fresh_hugetlb_folio
Since commit d67e32f267 ("hugetlb: restructure pool allocations"), the
parameter node_alloc_noretry from alloc_fresh_hugetlb_folio() is not used,
so drop it.

Link: https://lkml.kernel.org/r/20240516081035.5651-1-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:29:52 -07:00
Illia Ostapyshyn
0ba5e806e1 mm/vmscan: update stale references to shrink_page_list
Commit 49fd9b6df5 ("mm/vmscan: fix a lot of comments") renamed
shrink_page_list() to shrink_folio_list().  Fix up the remaining
references to the old name in comments and documentation.

Link: https://lkml.kernel.org/r/20240517091348.1185566-1-illia@yshyn.com
Signed-off-by: Illia Ostapyshyn <illia@yshyn.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:29:52 -07:00
Thomas Weißschuh
525c303049 mm/hugetlb: constify ctl_table arguments of utility functions
The sysctl core is preparing to only expose instances of struct ctl_table
as "const".  This will also affect the ctl_table argument of sysctl
handlers.

As the function prototype of all sysctl handlers throughout the tree
needs to stay consistent that change will be done in one commit.

To reduce the size of that final commit, switch utility functions which
are not bound by "typedef proc_handler" to "const struct ctl_table".

No functional change.

Link: https://lkml.kernel.org/r/20240518-sysctl-const-handler-hugetlb-v1-1-47e34e2871b2@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: Joel Granados <j.granados@samsung.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:29:52 -07:00
Linus Torvalds
22a40d14b5 Linux 6.10-rc6 2024-06-30 14:40:44 -07:00
Linus Torvalds
aca7c377d8 ata fixes for 6.10-rc6
- Add NOLPM quirk for for all Crucial BX SSD1 models.
   Considering that we now have had bug reports for 3 different BX SSD1
   variants from Crucial with the same product name, make the quirk more
   inclusive, to catch more device models from the same generation.
 
 - Fix a trivial null pointer dereference in the error path for
   ata_host_release().
 
 - Create a ata_port_free(), so that we don't miss freeing ata_port struct
   members when freeing a struct ata_port.
 
 - Fix a trivial double free in the error path for ata_host_alloc().
 
 - Ensure that we remove the libata "remapped NVMe device count" sysfs
   entry on .probe() error.
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Merge tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata fixes from Niklas Cassel:

 - Add NOLPM quirk for for all Crucial BX SSD1 models.

   Considering that we now have had bug reports for 3 different BX SSD1
   variants from Crucial with the same product name, make the quirk more
   inclusive, to catch more device models from the same generation.

 - Fix a trivial NULL pointer dereference in the error path for
   ata_host_release().

 - Create a ata_port_free(), so that we don't miss freeing ata_port
   struct members when freeing a struct ata_port.

 - Fix a trivial double free in the error path for ata_host_alloc().

 - Ensure that we remove the libata "remapped NVMe device count" sysfs
   entry on .probe() error.

* tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  ata: ahci: Clean up sysfs file on error
  ata: libata-core: Fix double free on error
  ata,scsi: libata-core: Do not leak memory for ata_port struct members
  ata: libata-core: Fix null pointer dereference on error
  ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models
2024-06-30 14:32:24 -07:00
Niklas Cassel
eeb25a09c5 ata: ahci: Clean up sysfs file on error
.probe() (ahci_init_one()) calls sysfs_add_file_to_group(), however,
if probe() fails after this call, we currently never call
sysfs_remove_file_from_group().

(The sysfs_remove_file_from_group() call in .remove() (ahci_remove_one())
does not help, as .remove() is not called on .probe() error.)

Thus, if probe() fails after the sysfs_add_file_to_group() call, the next
time we insmod the module we will get:

sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:04.0/remapped_nvme'
CPU: 11 PID: 954 Comm: modprobe Not tainted 6.10.0-rc5 #43
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x5d/0x80
 sysfs_warn_dup.cold+0x17/0x23
 sysfs_add_file_mode_ns+0x11a/0x130
 sysfs_add_file_to_group+0x7e/0xc0
 ahci_init_one+0x31f/0xd40 [ahci]

Fixes: 894fba7f43 ("ata: ahci: Add sysfs attribute to show remapped NVMe device count")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240629124210.181537-10-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
2024-06-30 22:23:39 +02:00
Niklas Cassel
ab9e0c529e ata: libata-core: Fix double free on error
If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump
to the err_out label, which will call devres_release_group().
devres_release_group() will trigger a call to ata_host_release().
ata_host_release() calls kfree(host), so executing the kfree(host) in
ata_host_alloc() will lead to a double free:

kernel BUG at mm/slub.c:553!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:kfree+0x2cf/0x2f0
Code: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da
RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246
RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320
RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0
RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780
R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006
FS:  00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die_body.cold+0x19/0x27
 ? die+0x2e/0x50
 ? do_trap+0xca/0x110
 ? do_error_trap+0x6a/0x90
 ? kfree+0x2cf/0x2f0
 ? exc_invalid_op+0x50/0x70
 ? kfree+0x2cf/0x2f0
 ? asm_exc_invalid_op+0x1a/0x20
 ? ata_host_alloc+0xf5/0x120 [libata]
 ? ata_host_alloc+0xf5/0x120 [libata]
 ? kfree+0x2cf/0x2f0
 ata_host_alloc+0xf5/0x120 [libata]
 ata_host_alloc_pinfo+0x14/0xa0 [libata]
 ahci_init_one+0x6c9/0xd20 [ahci]

Ensure that we will not call kfree(host) twice, by performing the kfree()
only if the devres_open_group() call failed.

Fixes: dafd6c4963 ("libata: ensure host is free'd on error exit paths")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240629124210.181537-9-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
2024-06-30 22:23:39 +02:00
Niklas Cassel
f6549f538f ata,scsi: libata-core: Do not leak memory for ata_port struct members
libsas is currently not freeing all the struct ata_port struct members,
e.g. ncq_sense_buf for a driver supporting Command Duration Limits (CDL).

Add a function, ata_port_free(), that is used to free a ata_port,
including its struct members. It makes sense to keep the code related to
freeing a ata_port in its own function, which will also free all the
struct members of struct ata_port.

Fixes: 18bd7718b5 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-8-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
2024-06-30 22:23:21 +02:00
Niklas Cassel
5d92c7c566 ata: libata-core: Fix null pointer dereference on error
If the ata_port_alloc() call in ata_host_alloc() fails,
ata_host_release() will get called.

However, the code in ata_host_release() tries to free ata_port struct
members unconditionally, which can lead to the following:

BUG: unable to handle page fault for address: 0000000000003990
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata]
Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41
RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246
RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0
RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68
R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004
R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006
FS:  00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die_body.cold+0x19/0x27
 ? page_fault_oops+0x15a/0x2f0
 ? exc_page_fault+0x7e/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? ata_host_release.cold+0x2f/0x6e [libata]
 ? ata_host_release.cold+0x2f/0x6e [libata]
 release_nodes+0x35/0xb0
 devres_release_group+0x113/0x140
 ata_host_alloc+0xed/0x120 [libata]
 ata_host_alloc_pinfo+0x14/0xa0 [libata]
 ahci_init_one+0x6c9/0xd20 [ahci]

Do not access ata_port struct members unconditionally.

Fixes: 633273a3ed ("libata-pmp: hook PMP support and enable it")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
2024-06-30 22:16:15 +02:00
Linus Torvalds
e0b668b070 Kbuild fixes for v6.10 (third)
- Remove the executable bit from installed DTB files
 
  - Escape $ in subshell execution in the debian-orig target
 
  - Fix RPM builds with CONFIG_MODULES=n
 
  - Fix xconfig with the O= option
 
  - Fix scripts_gdb with the O= option
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Merge tag 'kbuild-fixes-v6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove the executable bit from installed DTB files

 - Escape $ in subshell execution in the debian-orig target

 - Fix RPM builds with CONFIG_MODULES=n

 - Fix xconfig with the O= option

 - Fix scripts_gdb with the O= option

* tag 'kbuild-fixes-v6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: scripts/gdb: bring the "abspath" back
  kbuild: Use $(obj)/%.cc to fix host C++ module builds
  kbuild: rpm-pkg: fix build error with CONFIG_MODULES=n
  kbuild: Fix build target deb-pkg: ln: failed to create hard link
  kbuild: doc: Update default INSTALL_MOD_DIR from extra to updates
  kbuild: Install dtb files as 0644 in Makefile.dtbinst
2024-06-30 10:00:01 -07:00
Linus Torvalds
769327258a x86-32: fix cmpxchg8b_emu build error with clang
The kernel test robot reported that clang no longer compiles the 32-bit
x86 kernel in some configurations due to commit 95ece48165
("locking/atomic/x86: Rewrite x86_32 arch_atomic64_{,fetch}_{and,or,xor}()
functions").

The build fails with

  arch/x86/include/asm/cmpxchg_32.h:149:9: error: inline assembly requires more registers than available

and the reason seems to be that not only does the cmpxchg8b instruction
need four fixed registers (EDX:EAX and ECX:EBX), with the emulation
fallback the inline asm also wants a fifth fixed register for the
address (it uses %esi for that, but that's just a software convention
with cmpxchg8b_emu).

Avoiding using another pointer input to the asm (and just forcing it to
use the "0(%esi)" addressing that we end up requiring for the sw
fallback) seems to fix the issue.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406230912.F6XFIyA6-lkp@intel.com/
Fixes: 95ece48165 ("locking/atomic/x86: Rewrite x86_32 arch_atomic64_{,fetch}_{and,or,xor}() functions")
Link: https://lore.kernel.org/all/202406230912.F6XFIyA6-lkp@intel.com/
Suggested-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-and-Tested-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-06-30 09:21:29 -07:00
Linus Torvalds
84dd4373d5 Char/Misc driver fixes for 6.10-rc6
Here are some small driver fixes for 6.10-rc6.  Included in here are:
   - IIO driver fixes for reported issues
   - Counter driver fix for a reported problem.
 
 All of these have been in linux-next this week with no reported issues
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small driver fixes for 6.10-rc6. Included in here are:

   - IIO driver fixes for reported issues

   - Counter driver fix for a reported problem.

  All of these have been in linux-next this week with no reported
  issues"

* tag 'char-misc-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  counter: ti-eqep: enable clock at probe
  iio: chemical: bme680: Fix sensor data read operation
  iio: chemical: bme680: Fix overflows in compensate() functions
  iio: chemical: bme680: Fix calibration data variable
  iio: chemical: bme680: Fix pressure value output
  iio: humidity: hdc3020: fix hysteresis representation
  iio: dac: fix ad9739a random config compile error
  iio: accel: fxls8962af: select IIO_BUFFER & IIO_KFIFO_BUF
  iio: adc: ad7266: Fix variable checking bug
  iio: xilinx-ams: Don't include ams_ctrl_channels in scan_mask
2024-06-30 09:16:08 -07:00
Linus Torvalds
12529aa130 Staging driver fixes for 6.10-rc6
Here are 2 small staging driver fixes for 6.10-rc6, both for the
 vc04_services drivers:
  - build fix if CONFIG_DEBUGFS was not set
  - initialization check fix that was much reported.
 
 Both of these have been in linux-next this week with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are two small staging driver fixes for 6.10-rc6, both for the
  vc04_services drivers:

   - build fix if CONFIG_DEBUGFS was not set

   - initialization check fix that was much reported.

  Both of these have been in linux-next this week with no reported
  issues"

* tag 'staging-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: vchiq_debugfs: Fix build if CONFIG_DEBUG_FS is not set
  staging: vc04_services: vchiq_arm: Fix initialisation check
2024-06-30 09:11:59 -07:00
Linus Torvalds
3e334486ec TTY/Serial/Console fixes for 6.10-rc6
Here are a bunch of fixes/reverts for 6.10-rc6.  Include in here are:
   - revert the bunch of tty/serial/console changes that landed in -rc1
     that didn't quite work properly yet.  Everyone agreed to just revert
     them for now and will work on making them better for a future
     release instead of trying to quick fix the existing changes this
     late in the release cycle
   - 8250 driver port count bugfix
   - Other tiny serial port bugfixes for reported issues
 
 All of these have been in linux-next this week with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial / console fixes from Greg KH:
 "Here are a bunch of fixes/reverts for 6.10-rc6.  Include in here are:

   - revert the bunch of tty/serial/console changes that landed in -rc1
     that didn't quite work properly yet.

     Everyone agreed to just revert them for now and will work on making
     them better for a future release instead of trying to quick fix the
     existing changes this late in the release cycle

   - 8250 driver port count bugfix

   - Other tiny serial port bugfixes for reported issues

  All of these have been in linux-next this week with no reported
  issues"

* tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "printk: Save console options for add_preferred_console_match()"
  Revert "printk: Don't try to parse DEVNAME:0.0 console options"
  Revert "printk: Flag register_console() if console is set on command line"
  Revert "serial: core: Add support for DEVNAME:0.0 style naming for kernel console"
  Revert "serial: core: Handle serial console options"
  Revert "serial: 8250: Add preferred console in serial8250_isa_init_ports()"
  Revert "Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports"
  Revert "serial: 8250: Fix add preferred console for serial8250_isa_init_ports()"
  Revert "serial: core: Fix ifdef for serial base console functions"
  serial: bcm63xx-uart: fix tx after conversion to uart_port_tx_limited()
  serial: core: introduce uart_port_tx_limited_flags()
  Revert "serial: core: only stop transmit when HW fifo is empty"
  serial: imx: set receiver level before starting uart
  tty: mcf: MCF54418 has 10 UARTS
  serial: 8250_omap: Implementation of Errata i2310
  tty: serial: 8250: Fix port count mismatch with the device
2024-06-30 08:57:43 -07:00
Linus Torvalds
2c01c3d552 USB fixes for 6.10-rc6
Here are a handful of small USB driver fixes for 6.10-rc6 to resolve
 some reported issues.  Included in here are:
   - typec driver bugfixes
   - usb gadget driver reverts for commits that were reported to have
     problems
   - resource leak bugfix
   - gadget driver bugfixes
   - dwc3 driver bugfixes
   - usb atm driver bugfix for when syzbot got loose on it
 
 All of these have been in linux-next this week with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a handful of small USB driver fixes for 6.10-rc6 to resolve
  some reported issues. Included in here are:

   - typec driver bugfixes

   - usb gadget driver reverts for commits that were reported to have
     problems

   - resource leak bugfix

   - gadget driver bugfixes

   - dwc3 driver bugfixes

   - usb atm driver bugfix for when syzbot got loose on it

  All of these have been in linux-next this week with no reported issues"

* tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: dwc3: core: Workaround for CSR read timeout
  Revert "usb: gadget: u_ether: Replace netif_stop_queue with netif_device_detach"
  Revert "usb: gadget: u_ether: Re-attach netif device to mirror detachment"
  usb: gadget: aspeed_udc: fix device address configuration
  usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
  usb: typec: ucsi: glink: fix child node release in probe function
  usb: musb: da8xx: fix a resource leak in probe()
  usb: typec: ucsi_acpi: Add LG Gram quirk
  usb: ucsi: stm32: fix command completion handling
  usb: atm: cxacru: fix endpoint checking in cxacru_bind()
  usb: gadget: printer: fix races against disable
  usb: gadget: printer: SS+ support
2024-06-30 08:54:24 -07:00
Linus Torvalds
3ffea9a7a6 - Fix "nosmp" and "maxcpus=0" after the parallel CPU bringup work went in and broke them
- Make sure CPU hotplug dynamic prepare states are actually executed
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Merge tag 'smp_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull smp fixes from Borislav Petkov:

 - Fix "nosmp" and "maxcpus=0" after the parallel CPU bringup work went
   in and broke them

 - Make sure CPU hotplug dynamic prepare states are actually executed

* tag 'smp_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu: Fix broken cmdline "nosmp" and "maxcpus=0"
  cpu/hotplug: Fix dynstate assignment in __cpuhp_setup_state_cpuslocked()
2024-06-30 08:41:42 -07:00
Linus Torvalds
4e41216009 - Make sure multi-bridge machines get all eiointc interrupt controllers
initialized even if the number of CPUs has been limited by a cmdline param
 
  - Make sure interrupt lines on liointc hw are configured properly even when
    interrupt routing changes
 
  - Avoid use-after-free in the error path of the MSI init code
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Merge tag 'irq_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Make sure multi-bridge machines get all eiointc interrupt controllers
   initialized even if the number of CPUs has been limited by a cmdline
   param

 - Make sure interrupt lines on liointc hw are configured properly even
   when interrupt routing changes

 - Avoid use-after-free in the error path of the MSI init code

* tag 'irq_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Fix UAF in msi_capability_init
  irqchip/loongson-liointc: Set different ISRs for different cores
  irqchip/loongson-eiointc: Use early_cpu_to_node() instead of cpu_to_node()
2024-06-30 08:36:13 -07:00
Linus Torvalds
03c8b0bd46 - Warn when an hrtimer doesn't get a callback supplied
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Merge tag 'timers_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Warn when an hrtimer doesn't get a callback supplied

* tag 'timers_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hrtimer: Prevent queuing of hrtimer without a function callback
2024-06-30 08:31:08 -07:00
Linus Torvalds
327fceff3b linux-watchdog 6.10-rc-fixes tag
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Merge tag 'linux-watchdog-6.10-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:

 - lenovo_se10_wdt: add HAS_IOPORT dependency

 - add missing MODULE_DESCRIPTION() macros

* tag 'linux-watchdog-6.10-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: add missing MODULE_DESCRIPTION() macros
  watchdog: lenovo_se10_wdt: add HAS_IOPORT dependency
2024-06-30 08:28:20 -07:00
Linus Torvalds
8282d5af7b NFS client bugfixes for Linux 6.10
Bugfixes:
 - SUNRPC one more fix for the NFSv4.x backchannel timeouts
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Merge tag 'nfs-for-6.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fix from Trond Myklebust:

 - One more SUNRPC fix for the NFSv4.x backchannel timeouts

* tag 'nfs-for-6.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Fix backchannel reply, again
2024-06-29 13:48:24 -07:00
Linus Torvalds
27b31deb90 Bug fixes for 6.10-rc6:
* Always free only post-EOF delayed allocations for files with the
     XFS_DIFLAG_PREALLOC or APPEND flags set.
   * Do not align cow fork delalloc to cowextsz hint when running low on space.
   * Allow zero-size symlinks and directories as long as the link count is
     zero.
   * Change XFS_IOC_EXCHANGE_RANGE to be a _IOW only ioctl. This was ioctl was
     introduced during v6.10 developement cycle.
   * xfs_init_new_inode() now creates an attribute fork on a newly created
     inode even if ATTR feature flag is not enabled.
 
 Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.10-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Chandan Babu:

 - Always free only post-EOF delayed allocations for files with the
   XFS_DIFLAG_PREALLOC or APPEND flags set.

 - Do not align cow fork delalloc to cowextsz hint when running low on
   space.

 - Allow zero-size symlinks and directories as long as the link count is
   zero.

 - Change XFS_IOC_EXCHANGE_RANGE to be a _IOW only ioctl. This was ioctl
   was introduced during v6.10 developement cycle.

 - xfs_init_new_inode() now creates an attribute fork on a newly created
   inode even if ATTR feature flag is not enabled.

* tag 'xfs-6.10-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: honor init_xattrs in xfs_init_new_inode for !ATTR fs
  xfs: fix direction in XFS_IOC_EXCHANGE_RANGE
  xfs: allow unlinked symlinks and dirs with zero size
  xfs: restrict when we try to align cow fork delalloc to cowextsz hints
  xfs: fix freeing speculative preallocations for preallocated files
2024-06-29 09:21:40 -07:00
Linus Torvalds
ebe70b3ace Two fixes for the testunit and and a fixup for the code reorganization
of the previous wmt-driver
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Merge tag 'i2c-for-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two fixes for the testunit and and a fixup for the code reorganization
  of the previous wmt-driver"

* tag 'i2c-for-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: testunit: discard write requests while old command is running
  i2c: testunit: don't erase registers after STOP
  i2c: viai2c: turn common code into a proper module
2024-06-29 09:12:53 -07:00
Linus Torvalds
921863fd9f platform-drivers-x86 for v6.10-4
Highlights:
  -  Fix lg-laptop driver not working with 2024 LG laptop models
  -  Add missing MODULE_DESCRIPTION() macros to various modules
  -  nvsw-sn2201: Add check for platform_device_add_resources
 
 The following is an automated git shortlog grouped by driver:
 
 add missing MODULE_DESCRIPTION() macros:
  -  add missing MODULE_DESCRIPTION() macros
 
 lg-laptop:
  -  Use ACPI device handle when evaluating WMAB/WMBB
  -  Change ACPI device id
  -  Remove LGEX0815 hotkey handling
 
 platform/mellanox:
  -  nvsw-sn2201: Add check for platform_device_add_resources
 
 platform/x86/intel:
  -  add missing MODULE_DESCRIPTION() macros
 
 platform/x86/siemens:
  -  add missing MODULE_DESCRIPTION() macros
 
 wireless-hotkey:
  -  Add support for LG Airplane Button
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Merge tag 'platform-drivers-x86-v6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:

 - Fix lg-laptop driver not working with 2024 LG laptop models

 - Add missing MODULE_DESCRIPTION() macros to various modules

 - nvsw-sn2201: Add check for platform_device_add_resources

* tag 'platform-drivers-x86-v6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: add missing MODULE_DESCRIPTION() macros
  platform/x86/intel: add missing MODULE_DESCRIPTION() macros
  platform/x86/siemens: add missing MODULE_DESCRIPTION() macros
  platform/x86: lg-laptop: Use ACPI device handle when evaluating WMAB/WMBB
  platform/x86: lg-laptop: Change ACPI device id
  platform/x86: lg-laptop: Remove LGEX0815 hotkey handling
  platform/x86: wireless-hotkey: Add support for LG Airplane Button
  platform/mellanox: nvsw-sn2201: Add check for platform_device_add_resources
2024-06-29 09:09:20 -07:00
Linus Torvalds
a89385800e MMC host:
- moxart-mmc: Revert "mmc: moxart-mmc: Use sg_miter for PIO"
  - sdhci: Do not invert write-protect twice
  - sdhci: Do not lock spinlock around mmc_gpio_get_ro()
  - sdhci-pci/sdhci-pci-o2micro: Return proper error codes
  - sdhci-brcmstb: Fix support for erase/trim/discard
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Merge tag 'mmc-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:

 - moxart-mmc: Revert "mmc: moxart-mmc: Use sg_miter for PIO"

 - sdhci: Do not invert write-protect twice

 - sdhci: Do not lock spinlock around mmc_gpio_get_ro()

 - sdhci-pci/sdhci-pci-o2micro: Return proper error codes

 - sdhci-brcmstb: Fix support for erase/trim/discard

* tag 'mmc-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro()
  mmc: sdhci: Do not invert write-protect twice
  Revert "mmc: moxart-mmc: Use sg_miter for PIO"
  mmc: sdhci-brcmstb: check R1_STATUS for erase/trim/discard
  mmc: sdhci-pci-o2micro: Convert PCIBIOS_* return codes to errnos
  mmc: sdhci-pci: Convert PCIBIOS_* return codes to errnos
2024-06-29 09:03:19 -07:00
Linus Torvalds
de0a9f4486 RISC-V Fixes for 6.10-rc6
* A fix for vector load/store instruction decoding, which could result
   in reserved vector element length encodings decoding as valid vector
   instructions.
 * Instruction patching now aggressively flushes the local instruction
   cache, to avoid situations where patching functions on the flush path
   results in torn instructions being fetched.
 * A fix to prevent the stack walker from showing up as part of traces.
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Merge tag 'riscv-for-linus-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for vector load/store instruction decoding, which could result
   in reserved vector element length encodings decoding as valid vector
   instructions.

 - Instruction patching now aggressively flushes the local instruction
   cache, to avoid situations where patching functions on the flush path
   results in torn instructions being fetched.

 - A fix to prevent the stack walker from showing up as part of traces.

* tag 'riscv-for-linus-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: stacktrace: convert arch_stack_walk() to noinstr
  riscv: patch: Flush the icache right after patching to avoid illegal insns
  RISC-V: fix vector insn load/store width mask
2024-06-28 16:14:59 -07:00
Linus Torvalds
b75f947270 hardening fixes for v6.10-rc6
- Remove invalid tty __counted_by annotation (Nathan Chancellor)
 
 - Add missing MODULE_DESCRIPTION()s for KUnit string tests (Jeff Johnson)
 
 - Remove non-functional per-arch kstack entropy filtering
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Merge tag 'hardening-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - Remove invalid tty __counted_by annotation (Nathan Chancellor)

 - Add missing MODULE_DESCRIPTION()s for KUnit string tests (Jeff
   Johnson)

 - Remove non-functional per-arch kstack entropy filtering

* tag 'hardening-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  tty: mxser: Remove __counted_by from mxser_board.ports[]
  randomize_kstack: Remove non-functional per-arch entropy filtering
  string: kunit: add missing MODULE_DESCRIPTION() macros
2024-06-28 16:11:02 -07:00
Linus Torvalds
093d9603b6 x86: stop playing stack games in profile_pc()
The 'profile_pc()' function is used for timer-based profiling, which
isn't really all that relevant any more to begin with, but it also ends
up making assumptions based on the stack layout that aren't necessarily
valid.

Basically, the code tries to account the time spent in spinlocks to the
caller rather than the spinlock, and while I support that as a concept,
it's not worth the code complexity or the KASAN warnings when no serious
profiling is done using timers anyway these days.

And the code really does depend on stack layout that is only true in the
simplest of cases.  We've lost the comment at some point (I think when
the 32-bit and 64-bit code was unified), but it used to say:

	Assume the lock function has either no stack frame or a copy
	of eflags from PUSHF.

which explains why it just blindly loads a word or two straight off the
stack pointer and then takes a minimal look at the values to just check
if they might be eflags or the return pc:

	Eflags always has bits 22 and up cleared unlike kernel addresses

but that basic stack layout assumption assumes that there isn't any lock
debugging etc going on that would complicate the code and cause a stack
frame.

It causes KASAN unhappiness reported for years by syzkaller [1] and
others [2].

With no real practical reason for this any more, just remove the code.

Just for historical interest, here's some background commits relating to
this code from 2006:

  0cb91a2293 ("i386: Account spinlocks to the caller during profiling for !FP kernels")
  31679f38d8 ("Simplify profile_pc on x86-64")

and a code unification from 2009:

  ef4512882d ("x86: time_32/64.c unify profile_pc")

but the basics of this thing actually goes back to before the git tree.

Link: https://syzkaller.appspot.com/bug?extid=84fe685c02cd112a2ac3 [1]
Link: https://lore.kernel.org/all/CAK55_s7Xyq=nh97=K=G1sxueOFrJDAvPOJAL4TPTCAYvmxO9_A@mail.gmail.com/ [2]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-06-28 14:27:22 -07:00
Wolfram Sang
c116deafd1 i2c: testunit: discard write requests while old command is running
When clearing registers on new write requests was added, the protection
for currently running commands was missed leading to concurrent access
to the testunit registers. Check the flag beforehand.

Fixes: b39ab96aa8 ("i2c: testunit: add support for block process calls")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
2024-06-28 20:44:38 +02:00
Wolfram Sang
c422b6a630 i2c: testunit: don't erase registers after STOP
STOP fallsthrough to WRITE_REQUESTED but this became problematic when
clearing the testunit registers was added to the latter. Actually, there
is no reason to clear the testunit state after STOP. Doing it when a new
WRITE_REQUESTED arrives is enough. So, no need to fallthrough, at all.

Fixes: b39ab96aa8 ("i2c: testunit: add support for block process calls")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
2024-06-28 20:44:34 +02:00
Wolfram Sang
4e9a1a47c5 Fixed a build error following the major refactoring involving the
VIA-I2C modules. Originally, the code was split to group together
 parts that would be used by different drivers. This caused build
 issues when two modules linked to the same code.
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Merge tag 'i2c-host-fixes-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current

Fixed a build error following the major refactoring involving the
VIA-I2C modules. Originally, the code was split to group together
parts that would be used by different drivers. This caused build
issues when two modules linked to the same code.
2024-06-28 20:38:20 +02:00
Linus Torvalds
6c0483dbfe nfsd-6.10 fixes:
- Due to a late review, revert and re-fix a recent crasher fix
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Merge tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:

 - Due to a late review, revert and re-fix a recent crasher fix

* tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  Revert "nfsd: fix oops when reading pool_stats before server is started"
  nfsd: initialise nfsd_info.mutex early.
2024-06-28 09:32:33 -07:00
Linus Torvalds
cd63a278ac bcachefs fixes for 6.10-rc6
simple stuff:
 - null ptr/err ptr deref fixes
 - fix for getting wedged on shutdown after journal error
 
 - fix missing recalc_capacity() call, capacity now changes correctly
   after a device goes read only
 
   however: our capacity calculation still doesn't take into account when
   we have mixed ro/rw devices and the ro devices have data on them,
   that's going to be a more involved fix to separate accounting for
   "capacity used on ro devices" and "capacity used on rw devices"
 
 - boring syzbot stuff
 
 slightly more involved:
 - discard, invalidate workers are now per device
   this has the effect of simplifying how we take device refs in these
   paths, and the device ref cleanup fixes a longstanding race between
   the device removal path and the discard path
 
 - fixes for how the debugfs code takes refs on btree_trans objects
   we have debugfs code that prints in use btree_trans objects. It uses
   closure_get() on trans->ref, which is mainly for the cycle detector,
   but the debugfs code was using it on a closure that may have hit 0,
   which is not allowed; for performance reasons we cannot avoid having
   not-in-use transactions on the global list.
 
   introduce some new primitives to fix this and make the synchronization
   here a whole lot saner
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Merge tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs fixes from Kent Overstreet:
 "Simple stuff:

   - NULL ptr/err ptr deref fixes

   - fix for getting wedged on shutdown after journal error

   - fix missing recalc_capacity() call, capacity now changes correctly
     after a device goes read only

     however: our capacity calculation still doesn't take into account
     when we have mixed ro/rw devices and the ro devices have data on
     them, that's going to be a more involved fix to separate accounting
     for "capacity used on ro devices" and "capacity used on rw devices"

   - boring syzbot stuff

  Slightly more involved:

   - discard, invalidate workers are now per device

     this has the effect of simplifying how we take device refs in these
     paths, and the device ref cleanup fixes a longstanding race between
     the device removal path and the discard path

   - fixes for how the debugfs code takes refs on btree_trans objects we
     have debugfs code that prints in use btree_trans objects.

     It uses closure_get() on trans->ref, which is mainly for the cycle
     detector, but the debugfs code was using it on a closure that may
     have hit 0, which is not allowed; for performance reasons we cannot
     avoid having not-in-use transactions on the global list.

     Introduce some new primitives to fix this and make the
     synchronization here a whole lot saner"

* tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs:
  bcachefs: Fix kmalloc bug in __snapshot_t_mut
  bcachefs: Discard, invalidate workers are now per device
  bcachefs: Fix shift-out-of-bounds in bch2_blacklist_entries_gc
  bcachefs: slab-use-after-free Read in bch2_sb_errors_from_cpu
  bcachefs: Add missing bch2_journal_do_writes() call
  bcachefs: Fix null ptr deref in journal_pins_to_text()
  bcachefs: Add missing recalc_capacity() call
  bcachefs: Fix btree_trans list ordering
  bcachefs: Fix race between trans_put() and btree_transactions_read()
  closures: closure_get_not_zero(), closure_return_sync()
  bcachefs: Make btree_deadlock_to_text() clearer
  bcachefs: fix seqmutex_relock()
  bcachefs: Fix freeing of error pointers
2024-06-28 09:25:21 -07:00
Linus Torvalds
cd17613f46 block-6.10-20240628
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Merge tag 'block-6.10-20240628' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "NVMe fixes via Keith:

   - Fabrics fixes (Hannes)

   - Missing module description (Jeff)

   - Clang warning fix (Nathan)"

* tag 'block-6.10-20240628' of git://git.kernel.dk/linux:
  nvmet-fc: Remove __counted_by from nvmet_fc_tgt_queue.fod[]
  nvmet: make 'tsas' attribute idempotent for RDMA
  nvme: fixup comment for nvme RDMA Provider Type
  nvme-apple: add missing MODULE_DESCRIPTION()
  nvmet: do not return 'reserved' for empty TSAS values
  nvme: fix NVME_NS_DEAC may incorrectly identifying the disk as EXT_LBA.
2024-06-28 09:21:27 -07:00
Linus Torvalds
a2316dda07 IOMMU Fixes for Linux v6.10-rc5
Including:
 
 	- Two cache flushing fixes for Intel and AMD drivers
 	- AMD guest translation enabling fix
 	- Update IOMMU tree location in MAINTAINERS file
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Merge tag 'iommu-fixes-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Two cache flushing fixes for Intel and AMD drivers

 - AMD guest translation enabling fix

 - Update IOMMU tree location in MAINTAINERS file

* tag 'iommu-fixes-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  MAINTAINERS: Update IOMMU tree location
  iommu/amd: Fix GT feature enablement again
  iommu/vt-d: Fix missed device TLB cache tag
  iommu/amd: Invalidate cache before removing device from domain list
2024-06-28 09:18:01 -07:00
Linus Torvalds
1cf0668466 gpio fixes for v6.10-rc6
- fix a race condition in i2c transfers by adding a missing i2c lock
   section in gpio-pca953x
 - validate the number of obtained interrupts in gpio-davinci
 - add missing raw_spinlock_init() in gpio-graniterapids
 - fix bad character device behavior: disallow GPIO line reconfiguration
   without set direction both in v1 and v2 uAPI
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Merge tag 'gpio-fixes-for-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:
 "An assortment of driver fixes and two commits addressing a bad
  behavior of the GPIO uAPI when reconfiguring requested lines.

   - fix a race condition in i2c transfers by adding a missing i2c lock
     section in gpio-pca953x

   - validate the number of obtained interrupts in gpio-davinci

   - add missing raw_spinlock_init() in gpio-graniterapids

   - fix bad character device behavior: disallow GPIO line
     reconfiguration without set direction both in v1 and v2 uAPI"

* tag 'gpio-fixes-for-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: cdev: Ignore reconfiguration without direction
  gpiolib: cdev: Disallow reconfiguration without direction (uAPI v1)
  gpio: graniterapids: Add missing raw_spinlock_init()
  gpio: davinci: Validate the obtained number of IRQs
  gpio: pca953x: fix pca953x_irq_bus_sync_unlock race
2024-06-28 09:15:13 -07:00
Linus Torvalds
9038455948 arm64 fixes for -rc6
- Fix spurious page-table warning when clearing PTE_UFFD_WP in a live
   pte
 
 - Fix clearing of the idmap pgd when using large addressing modes
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "A pair of small arm64 fixes for -rc6.

  One is a fix for the recently merged uffd-wp support (which was
  triggering a spurious warning) and the other is a fix to the clearing
  of the initial idmap pgd in some configurations

  Summary:

   - Fix spurious page-table warning when clearing PTE_UFFD_WP in a live
     pte

   - Fix clearing of the idmap pgd when using large addressing modes"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Clear the initial ID map correctly before remapping
  arm64: mm: Permit PTE SW bits to change in live mappings
2024-06-28 09:10:01 -07:00
Linus Torvalds
234458d049 Fix three recent minor turbostat regressions.
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Merge tag 'v6.10-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat fixes from Len Brown:
 "Fix three recent minor turbostat regressions"

* tag 'v6.10-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: Add local build_bug.h header for snapshot target
  tools/power turbostat: Fix unc freq columns not showing with '-q' or '-l'
  tools/power turbostat: option '-n' is ambiguous
2024-06-28 09:04:33 -07:00
Nathan Chancellor
1c07c9be87 tty: mxser: Remove __counted_by from mxser_board.ports[]
Work for __counted_by on generic pointers in structures (not just
flexible array members) has started landing in Clang 19 (current tip of
tree). During the development of this feature, a restriction was added
to __counted_by to prevent the flexible array member's element type from
including a flexible array member itself such as:

  struct foo {
    int count;
    char buf[];
  };

  struct bar {
    int count;
    struct foo data[] __counted_by(count);
  };

because the size of data cannot be calculated with the standard array
size formula:

  sizeof(struct foo) * count

This restriction was downgraded to a warning but due to CONFIG_WERROR,
it can still break the build. The application of __counted_by on the
ports member of 'struct mxser_board' triggers this restriction,
resulting in:

  drivers/tty/mxser.c:291:2: error: 'counted_by' should not be applied to an array with element of unknown size because 'struct mxser_port' is a struct type with a flexible array member. This will be an error in a future compiler version [-Werror,-Wbounds-safety-counted-by-elt-type-unknown-size]
    291 |         struct mxser_port ports[] __counted_by(nports);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~
  1 error generated.

Remove this use of __counted_by to fix the warning/error. However,
rather than remove it altogether, leave it commented, as it may be
possible to support this in future compiler releases.

Cc:  <stable@vger.kernel.org>
Closes: https://github.com/ClangBuiltLinux/linux/issues/2026
Fixes: f34907ecca ("mxser: Annotate struct mxser_board with __counted_by")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20240529-drop-counted-by-ports-mxser-board-v1-1-0ab217f4da6d@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2024-06-28 08:54:56 -07:00
Kees Cook
6db1208bf9 randomize_kstack: Remove non-functional per-arch entropy filtering
An unintended consequence of commit 9c573cd313 ("randomize_kstack:
Improve entropy diffusion") was that the per-architecture entropy size
filtering reduced how many bits were being added to the mix, rather than
how many bits were being used during the offsetting. All architectures
fell back to the existing default of 0x3FF (10 bits), which will consume
at most 1KiB of stack space. It seems that this is working just fine,
so let's avoid the confusion and update everything to use the default.

The prior intent of the per-architecture limits were:

  arm64: capped at 0x1FF (9 bits), 5 bits effective
  powerpc: uncapped (10 bits), 6 or 7 bits effective
  riscv: uncapped (10 bits), 6 bits effective
  x86: capped at 0xFF (8 bits), 5 (x86_64) or 6 (ia32) bits effective
  s390: capped at 0xFF (8 bits), undocumented effective entropy

Current discussion has led to just dropping the original per-architecture
filters. The additional entropy appears to be safe for arm64, x86,
and s390. Quoting Arnd, "There is no point pretending that 15.75KB is
somehow safe to use while 15.00KB is not."

Co-developed-by: Yuntao Liu <liuyuntao12@huawei.com>
Signed-off-by: Yuntao Liu <liuyuntao12@huawei.com>
Fixes: 9c573cd313 ("randomize_kstack: Improve entropy diffusion")
Link: https://lore.kernel.org/r/20240617133721.377540-1-liuyuntao12@huawei.com
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com> # s390
Link: https://lore.kernel.org/r/20240619214711.work.953-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2024-06-28 08:54:56 -07:00
Jeff Johnson
6a4805b2f5 string: kunit: add missing MODULE_DESCRIPTION() macros
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/string_kunit.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/string_helpers_kunit.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240531-md-lib-string-v1-1-2738cf057d94@quicinc.com
Signed-off-by: Kees Cook <kees@kernel.org>
2024-06-28 08:54:55 -07:00
Niklas Cassel
1066fe8259 ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models
We got another report that CT1000BX500SSD1 does not work with LPM.

If you look in libata-core.c, we have six different Crucial devices that
are marked with ATA_HORKAGE_NOLPM. This model would have been the seventh.
(This quirk is used on Crucial models starting with both CT* and
Crucial_CT*)

It is obvious that this vendor does not have a great history of supporting
LPM properly, therefore, add the ATA_HORKAGE_NOLPM quirk for all Crucial
BX SSD1 models.

Fixes: 7627a0edef ("ata: ahci: Drop low power policy board type")
Cc: stable@vger.kernel.org
Reported-by: Alessandro Maggio <alex.tkd.alex@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218832
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240627105551.4159447-2-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
2024-06-28 16:33:50 +02:00
Joerg Roedel
09aaa2d064 MAINTAINERS: Update IOMMU tree location
Update the maintainers entries to the new location of the
IOMMU tree.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-06-28 14:31:50 +02:00
Patryk Wlazlyn
b15943c4b3 tools/power turbostat: Add local build_bug.h header for snapshot target
Fixes compilation errors for Makefile snapshot target described in:
commit 231ce08b66 ("tools/power turbostat: Add "snapshot:" Makefile target")

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-06-27 23:53:27 -04:00
Adam Hawley
c5120a3356 tools/power turbostat: Fix unc freq columns not showing with '-q' or '-l'
Commit 78464d7681 ("tools/power turbostat: Add columns for clustered
uncore frequency") introduced 'probe_intel_uncore_frequency_cluster()'
in a way which prevents printing uncore frequency columns if either of
the '-q' or '-l' options are used. Systems which do not have multiple
uncore frequencies per package are unaffected by this regression.

Fix the function so that uncore frequency columns are shown when either
the '-l' or '-q' option is used by checking if 'quiet' is true after
adding counters for the uncore frequency columns.

Fixes: 78464d7681 ("tools/power turbostat: Add columns for clustered uncore frequency")

Signed-off-by: Adam Hawley <adam.james.hawley@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-06-27 23:53:27 -04:00
David Arcari
ebb5b260af tools/power turbostat: option '-n' is ambiguous
In some cases specifying the '-n' command line argument will cause
turbostat to fail.  For instance 'turbostat -n 1' works fine; however,
'turbostat -n 1 -d' will fail.  This is the result of the first call
to getopt_long_only() where "MP" is specified as the optstring.  This can
be easily fixed by changing the optstring from "MP" to "MPn:" to remove
ambiguity between the arguments.

tools/power turbostat: option '-n' is ambiguous; possibilities: '-num_iterations' '-no-msr' '-no-perf'

Fixes: a0e86c90b8 ("tools/power turbostat: Add --no-perf option")

Signed-off-by: David Arcari <darcari@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-06-27 23:53:27 -04:00
Linus Torvalds
5bbd9b2498 This push fixes a build failure in qat.
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Merge tag 'v6.10-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pyll crypto fix from Herbert Xu:
 "Fix a build failure in qat"

* tag 'v6.10-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: qat - fix linking errors when PCI_IOV is disabled
2024-06-27 17:43:15 -07:00
Linus Torvalds
1c52cf5e79 drm fixes for 6.10-rc6
core:
 - fix refcounting race on pid handover
 
 fbdev:
 - Fix fb_info when vmalloc is used, regression from
   CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM.
 
 amdgpu:
 - SMU 14.x fix
 - vram info parsing fix
 - mode1 reset fix
 - LTTPR fix
 - Virtual display fix
 - Avoid spurious error in PSP init
 
 i915:
 - Fix potential UAF due to race on fence register revocation
 
 nouveau
 - nouveau tv mode fixes.
 
 panel:
 - Add KOE TX26D202VM0BWA timings.
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Merge tag 'drm-fixes-2024-06-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Regular fixes, mostly amdgpu with some minor fixes in other places,
  along with a fix for a very narrow UAF race in the pid handover code.

  core:
   - fix refcounting race on pid handover

  fbdev:
   - Fix fb_info when vmalloc is used, regression from
     CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM.

  amdgpu:
   - SMU 14.x fix
   - vram info parsing fix
   - mode1 reset fix
   - LTTPR fix
   - Virtual display fix
   - Avoid spurious error in PSP init

  i915:
   - Fix potential UAF due to race on fence register revocation

  nouveau
   - nouveau tv mode fixes

  panel:
   - Add KOE TX26D202VM0BWA timings"

* tag 'drm-fixes-2024-06-28' of https://gitlab.freedesktop.org/drm/kernel:
  drm/drm_file: Fix pid refcounting race
  drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes
  drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes
  drm/amdgpu: Don't show false warning for reg list
  drm/amdgpu: avoid using null object of framebuffer
  drm/amd/display: Send DP_TOTAL_LTTPR_CNT during detection if LTTPR is present
  drm/amdgpu: Fix pci state save during mode-1 reset
  drm/amdgpu/atomfirmware: fix parsing of vram_info
  drm/amd/swsmu: add MALL init support workaround for smu_v14_0_1
  drm/i915/gt: Fix potential UAF by revoke of fence registers
  drm/panel: simple: Add missing display timing flags for KOE TX26D202VM0BWA
  drm/fbdev-dma: Only set smem_start is enable per module option
2024-06-27 17:24:34 -07:00
Jann Horn
4f2a129b33 drm/drm_file: Fix pid refcounting race
<maarten.lankhorst@linux.intel.com>, Maxime Ripard
<mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>

filp->pid is supposed to be a refcounted pointer; however, before this
patch, drm_file_update_pid() only increments the refcount of a struct
pid after storing a pointer to it in filp->pid and dropping the
dev->filelist_mutex, making the following race possible:

process A               process B
=========               =========
                        begin drm_file_update_pid
                        mutex_lock(&dev->filelist_mutex)
                        rcu_replace_pointer(filp->pid, <pid B>, 1)
                        mutex_unlock(&dev->filelist_mutex)
begin drm_file_update_pid
mutex_lock(&dev->filelist_mutex)
rcu_replace_pointer(filp->pid, <pid A>, 1)
mutex_unlock(&dev->filelist_mutex)
get_pid(<pid A>)
synchronize_rcu()
put_pid(<pid B>)   *** pid B reaches refcount 0 and is freed here ***
                        get_pid(<pid B>)   *** UAF ***
                        synchronize_rcu()
                        put_pid(<pid A>)

As far as I know, this race can only occur with CONFIG_PREEMPT_RCU=y
because it requires RCU to detect a quiescent state in code that is not
explicitly calling into the scheduler.

This race leads to use-after-free of a "struct pid".
It is probably somewhat hard to hit because process A has to pass
through a synchronize_rcu() operation while process B is between
mutex_unlock() and get_pid().

Fix it by ensuring that by the time a pointer to the current task's pid
is stored in the file, an extra reference to the pid has been taken.

This fix also removes the condition for synchronize_rcu(); I think
that optimization is unnecessary complexity, since in that case we
would usually have bailed out on the lockless check above.

Fixes: 1c7a387ffe ("drm: Update file owner during use")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2024-06-28 08:56:26 +10:00
Dave Airlie
3e6d5e1199 Merge tag 'drm-intel-fixes-2024-06-27' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
drm/i915 fixes for v6.10-rc6:
- Fix potential UAF due to race on fence register revocation

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87ikxudcpd.fsf@intel.com
2024-06-28 07:27:16 +10:00
Linus Torvalds
ef8abe9668 Power management fix for 6.10-rc6
Modify the intel_pstate driver to use HWP to initialize the ITMT
 scheduler extension if ACPI CPPC cannot be used for that, which is
 the case on some hybrid x86 systems (Rafael Wysocki).
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Merge tag 'pm-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Modify the intel_pstate driver to use HWP to initialize the ITMT
  scheduler extension if ACPI CPPC cannot be used for that, which is the
  case on some hybrid x86 systems (Rafael Wysocki)"

* tag 'pm-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Use HWP to initialize ITMT if CPPC is missing
2024-06-27 12:35:30 -07:00