After change in commit 4239174570 ("tracing: Make tracepoint_printk a
static_key"), this symbol is not used outside of the file, so mark it
static.
Link: https://lkml.kernel.org/r/20221122091456.72055-1-xiujianfeng@huawei.com
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This patch uses strndup_user instead of kzalloc + strncpy_from_user,
which makes the code more concise.
Link: https://lkml.kernel.org/r/20221121080831.707409-1-nashuiliang@gmail.com
Signed-off-by: Chuang Wang <nashuiliang@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add the documentation about the osnoise/options file, along
with an explanation about the OSNOISE_WORKLOAD option.
Link: https://lkml.kernel.org/r/777af8f3d87beedd304805f98eff6c8291d64226.1668692096.git.bristot@kernel.org
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add the tracing/osnoise/options file to control
osnoise/timerlat tracer features. It is a single
file to contain multiple features, similar to
the sched/features file.
Reading the file displays a list of options. Writing
the OPTION_NAME enables it, writing NO_OPTION_NAME disables
it.
The DEAFULTS is a particular option that resets the options
to the default ones.
It uses a bitmask to keep track of the status of the option. When
needed, we can add a list of static keys, but for now
it does not justify the memory increase.
Link: https://lkml.kernel.org/r/f8d34aefdb225d2603fcb4c02a120832a0cd3339.1668692096.git.bristot@kernel.org
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
After commit a389d86f7f ("ring-buffer: Have nested events still record
running time stamp"), the "event" parameter is no longer used in either
ring_buffer_unlock_commit() or rb_commit(). Best to remove it.
Link: https://lkml.kernel.org/r/1666274811-24138-1-git-send-email-chensong_2000@189.cn
Signed-off-by: Song Chen <chensong_2000@189.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Allow triggers to be enabled at kernel boot up. For example:
trace_trigger="sched_switch.stacktrace if prev_state == 2"
The above will enable the stacktrace trigger on top of the sched_switch
event and only trigger if its prev_state is 2 (TASK_UNINTERRUPTIBLE). Then
at boot up, a stacktrace will trigger and be recorded in the tracing ring
buffer every time the sched_switch happens where the previous state is
TASK_INTERRUPTIBLE.
Another useful trigger would be "traceoff" which can stop tracing on an
event if a field of the event matches a certain value defined by the
filter ("if" statement).
Link: https://lore.kernel.org/linux-trace-kernel/20221020210056.0d8d0a5b@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The trace events have a __bitmask field that can be used for anything
that requires bitmasks. Although currently it is only used for CPU
masks, it could be used in the future for any type of bitmasks.
There is some user space tooling that wants to know if a field is a CPU
mask and not just some random unsigned long bitmask. Introduce
"__cpumask()" helper functions that work the same as the current
__bitmask() helpers but displays in the format file:
field:__data_loc cpumask_t *[] mask; offset:36; size:4; signed:0;
Instead of:
field:__data_loc unsigned long[] mask; offset:32; size:4; signed:0;
The main difference is the type. Instead of "unsigned long" it is
"cpumask_t *". Note, this type field needs to be a real type in the
__dynamic_array() logic that both __cpumask and__bitmask use, but the
comparison field requires it to be a scalar type whereas cpumask_t is a
structure (non-scalar). But everything works when making it a pointer.
Valentin added changes to remove the need of passing in "nr_bits" and the
__cpumask will always use nr_cpumask_bits as its size.
Link: https://lkml.kernel.org/r/20221014080456.1d32b989@rorschach.local.home
Requested-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
After 65536 dynamic events have been added and removed, the "type" field
of the event then uses the first type number that is available (not
currently used by other events). A type number is the identifier of the
binary blobs in the tracing ring buffer (known as events) to map them to
logic that can parse the binary blob.
The issue is that if a dynamic event (like a kprobe event) is traced and
is in the ring buffer, and then that event is removed (because it is
dynamic, which means it can be created and destroyed), if another dynamic
event is created that has the same number that new event's logic on
parsing the binary blob will be used.
To show how this can be an issue, the following can crash the kernel:
# cd /sys/kernel/tracing
# for i in `seq 65536`; do
echo 'p:kprobes/foo do_sys_openat2 $arg1:u32' > kprobe_events
# done
For every iteration of the above, the writing to the kprobe_events will
remove the old event and create a new one (with the same format) and
increase the type number to the next available on until the type number
reaches over 65535 which is the max number for the 16 bit type. After it
reaches that number, the logic to allocate a new number simply looks for
the next available number. When an dynamic event is removed, that number
is then available to be reused by the next dynamic event created. That is,
once the above reaches the max number, the number assigned to the event in
that loop will remain the same.
Now that means deleting one dynamic event and created another will reuse
the previous events type number. This is where bad things can happen.
After the above loop finishes, the kprobes/foo event which reads the
do_sys_openat2 function call's first parameter as an integer.
# echo 1 > kprobes/foo/enable
# cat /etc/passwd > /dev/null
# cat trace
cat-2211 [005] .... 2007.849603: foo: (do_sys_openat2+0x0/0x130) arg1=4294967196
cat-2211 [005] .... 2007.849620: foo: (do_sys_openat2+0x0/0x130) arg1=4294967196
cat-2211 [005] .... 2007.849838: foo: (do_sys_openat2+0x0/0x130) arg1=4294967196
cat-2211 [005] .... 2007.849880: foo: (do_sys_openat2+0x0/0x130) arg1=4294967196
# echo 0 > kprobes/foo/enable
Now if we delete the kprobe and create a new one that reads a string:
# echo 'p:kprobes/foo do_sys_openat2 +0($arg2):string' > kprobe_events
And now we can the trace:
# cat trace
sendmail-1942 [002] ..... 530.136320: foo: (do_sys_openat2+0x0/0x240) arg1= cat-2046 [004] ..... 530.930817: foo: (do_sys_openat2+0x0/0x240) arg1="������������������������������������������������������������������������������������������������"
cat-2046 [004] ..... 530.930961: foo: (do_sys_openat2+0x0/0x240) arg1="������������������������������������������������������������������������������������������������"
cat-2046 [004] ..... 530.934278: foo: (do_sys_openat2+0x0/0x240) arg1="������������������������������������������������������������������������������������������������"
cat-2046 [004] ..... 530.934563: foo: (do_sys_openat2+0x0/0x240) arg1="������������������������������������������������������������������������������������������������"
bash-1515 [007] ..... 534.299093: foo: (do_sys_openat2+0x0/0x240) arg1="kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk���������@��4Z����;Y�����U
And dmesg has:
==================================================================
BUG: KASAN: use-after-free in string+0xd4/0x1c0
Read of size 1 at addr ffff88805fdbbfa0 by task cat/2049
CPU: 0 PID: 2049 Comm: cat Not tainted 6.1.0-rc6-test+ #641
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016
Call Trace:
<TASK>
dump_stack_lvl+0x5b/0x77
print_report+0x17f/0x47b
kasan_report+0xad/0x130
string+0xd4/0x1c0
vsnprintf+0x500/0x840
seq_buf_vprintf+0x62/0xc0
trace_seq_printf+0x10e/0x1e0
print_type_string+0x90/0xa0
print_kprobe_event+0x16b/0x290
print_trace_line+0x451/0x8e0
s_show+0x72/0x1f0
seq_read_iter+0x58e/0x750
seq_read+0x115/0x160
vfs_read+0x11d/0x460
ksys_read+0xa9/0x130
do_syscall_64+0x3a/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc2e972ade2
Code: c0 e9 b2 fe ff ff 50 48 8d 3d b2 3f 0a 00 e8 05 f0 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
RSP: 002b:00007ffc64e687c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fc2e972ade2
RDX: 0000000000020000 RSI: 00007fc2e980d000 RDI: 0000000000000003
RBP: 00007fc2e980d000 R08: 00007fc2e980c010 R09: 0000000000000000
R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000020f00
R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000
</TASK>
The buggy address belongs to the physical page:
page:ffffea00017f6ec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5fdbb
flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
raw: 000fffffc0000000 0000000000000000 ffffea00017f6ec8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88805fdbbe80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88805fdbbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88805fdbbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88805fdbc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88805fdbc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
This was found when Zheng Yejian sent a patch to convert the event type
number assignment to use IDA, which gives the next available number, and
this bug showed up in the fuzz testing by Yujie Liu and the kernel test
robot. But after further analysis, I found that this behavior is the same
as when the event type numbers go past the 16bit max (and the above shows
that).
As modules have a similar issue, but is dealt with by setting a
"WAS_ENABLED" flag when a module event is enabled, and when the module is
freed, if any of its events were enabled, the ring buffer that holds that
event is also cleared, to prevent reading stale events. The same can be
done for dynamic events.
If any dynamic event that is being removed was enabled, then make sure the
buffers they were enabled in are now cleared.
Link: https://lkml.kernel.org/r/20221123171434.545706e3@gandalf.local.home
Link: https://lore.kernel.org/all/20221110020319.1259291-1-zhengyejian1@huawei.com/
Cc: stable@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Depends-on: e18eb8783e ("tracing: Add tracing_reset_all_online_cpus_unlocked() function")
Depends-on: 5448d44c38 ("tracing: Add unified dynamic event framework")
Depends-on: 6212dd2968 ("tracing/kprobes: Use dyn_event framework for kprobe events")
Depends-on: 065e63f951 ("tracing: Only have rmmod clear buffers that its events were active in")
Depends-on: 575380da8b ("tracing: Only clear trace buffer on module unload if event was traced")
Fixes: 77b44d1b7c ("tracing/kprobes: Rename Kprobe-tracer to kprobe-event")
Reported-by: Zheng Yejian <zhengyejian1@huawei.com>
Reported-by: Yujie Liu <yujie.liu@intel.com>
Reported-by: kernel test robot <yujie.liu@intel.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Currently the tracing_reset_all_online_cpus() requires the
trace_types_lock held. But only one caller of this function actually has
that lock held before calling it, and the other just takes the lock so
that it can call it. More users of this function is needed where the lock
is not held.
Add a tracing_reset_all_online_cpus_unlocked() function for the one use
case that calls it without being held, and also add a lockdep_assert to
make sure it is held when called.
Then have tracing_reset_all_online_cpus() take the lock internally, such
that callers do not need to worry about taking it.
Link: https://lkml.kernel.org/r/20221123192741.658273220@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
commit 94eedf3dde ("tracing: Fix race where eprobes can be called before
the event") fixed an issue where if an event is soft disabled, and the
trigger is being added, there's a small window where the event sees that
there's a trigger but does not see that it requires reading the event yet,
and then calls the trigger with the record == NULL.
This could be solved with adding memory barriers in the hot path, or to
make sure that all the triggers requiring a record check for NULL. The
latter was chosen.
Commit 94eedf3dde set the eprobe trigger handle to check for NULL, but
the same needs to be done with histograms.
Link: https://lore.kernel.org/linux-trace-kernel/20221118211809.701d40c0f8a757b0df3c025a@kernel.org/
Link: https://lore.kernel.org/linux-trace-kernel/20221123164323.03450c3a@gandalf.local.home
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 7491e2c442 ("tracing: Add a probe that attaches to trace events")
Reported-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The duration type is a 64 long value, not an int. This was
causing some long noise to report wrong values.
Change the duration to a 64 bits value.
Link: https://lkml.kernel.org/r/a93d8a8378c7973e9c609de05826533c9e977939.1668692096.git.bristot@kernel.org
Cc: stable@vger.kernel.org
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Fixes: bce29ac9ce ("trace: Add osnoise tracer")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Before current_user_event_group(), it has allocated memory and save it
in @name, this should freed before return error.
Link: https://lkml.kernel.org/r/20221115014445.158419-1-xiujianfeng@huawei.com
Fixes: e5d271812e ("tracing/user_events: Move pages/locks into groups to prepare for namespaces")
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
There are a couple of missing * in comment blocks. Fix these.
Cleans up two clang warnings:
kernel/trace/trace_events_hist.c:986: warning: bad line:
kernel/trace/trace_events_hist.c:3229: warning: bad line:
Link: https://lkml.kernel.org/r/20221020133019.1547587-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
- Fix possible NULL pointer dereference on trace_event_file in kprobe_event_gen_test_exit()
- Fix NULL pointer dereference for trace_array in kprobe_event_gen_test_exit()
- Fix memory leak of filter string for eprobes
- Fix a possible memory leak in rethook_alloc()
- Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case
which can cause a possible use-after-free
- Fix warning in eprobe filter creation
- Fix eprobe filter creation as it picked the wrong event for the fields
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Merge tag 'trace-probes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing/probes fixes from Steven Rostedt:
- Fix possible NULL pointer dereference on trace_event_file in
kprobe_event_gen_test_exit()
- Fix NULL pointer dereference for trace_array in
kprobe_event_gen_test_exit()
- Fix memory leak of filter string for eprobes
- Fix a possible memory leak in rethook_alloc()
- Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case which
can cause a possible use-after-free
- Fix warning in eprobe filter creation
- Fix eprobe filter creation as it picked the wrong event for the
fields
* tag 'trace-probes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/eprobe: Fix eprobe filter to make a filter correctly
tracing/eprobe: Fix warning in filter creation
kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case
rethook: fix a potential memleak in rethook_alloc()
tracing/eprobe: Fix memory leak of filter string
tracing: kprobe: Fix potential null-ptr-deref on trace_array in kprobe_event_gen_test_exit()
tracing: kprobe: Fix potential null-ptr-deref on trace_event_file in kprobe_event_gen_test_exit()
- Fix polling to block on watermark like the reads do, as user space
applications get confused when the select says read is available, and then
the read blocks.
- Fix accounting of ring buffer dropped pages as it is what is used to
determine if the buffer is empty or not.
- Fix memory leak in tracing_read_pipe()
- Fix struct trace_array warning about being declared in parameters
- Fix accounting of ftrace pages used in output at start up.
- Fix allocation of dyn_ftrace pages by subtracting one from order instead of
diving it by 2
- Static analyzer found a case were a pointer being used outside of a NULL
check. (rb_head_page_deactivate())
- Fix possible NULL pointer dereference if kstrdup() fails in ftrace_add_mod()
- Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()
- Fix bad pointer dereference in register_synth_event() on error path.
- Remove unused __bad_type_size() method
- Fix possible NULL pointer dereference of entry in list 'tr->err_log'
- Fix NULL pointer deference race if eprobe is called before the event setup
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Merge tag 'trace-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix polling to block on watermark like the reads do, as user space
applications get confused when the select says read is available, and
then the read blocks
- Fix accounting of ring buffer dropped pages as it is what is used to
determine if the buffer is empty or not
- Fix memory leak in tracing_read_pipe()
- Fix struct trace_array warning about being declared in parameters
- Fix accounting of ftrace pages used in output at start up.
- Fix allocation of dyn_ftrace pages by subtracting one from order
instead of diving it by 2
- Static analyzer found a case were a pointer being used outside of a
NULL check (rb_head_page_deactivate())
- Fix possible NULL pointer dereference if kstrdup() fails in
ftrace_add_mod()
- Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()
- Fix bad pointer dereference in register_synth_event() on error path
- Remove unused __bad_type_size() method
- Fix possible NULL pointer dereference of entry in list 'tr->err_log'
- Fix NULL pointer deference race if eprobe is called before the event
setup
* tag 'trace-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix race where eprobes can be called before the event
tracing: Fix potential null-pointer-access of entry in list 'tr->err_log'
tracing: Remove unused __bad_type_size() method
tracing: Fix wild-memory-access in register_synth_event()
tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()
ftrace: Fix null pointer dereference in ftrace_add_mod()
ring_buffer: Do not deactivate non-existant pages
ftrace: Optimize the allocation for mcount entries
ftrace: Fix the possible incorrect kernel message
tracing: Fix warning on variable 'struct trace_array'
tracing: Fix memory leak in tracing_read_pipe()
ring-buffer: Include dropped pages in counting dirty patches
tracing/ring-buffer: Have polling block on watermark
The flag that tells the event to call its triggers after reading the event
is set for eprobes after the eprobe is enabled. This leads to a race where
the eprobe may be triggered at the beginning of the event where the record
information is NULL. The eprobe then dereferences the NULL record causing
a NULL kernel pointer bug.
Test for a NULL record to keep this from happening.
Link: https://lore.kernel.org/linux-trace-kernel/20221116192552.1066630-1-rafaelmendsr@gmail.com/
Link: https://lore.kernel.org/linux-trace-kernel/20221117214249.2addbe10@gandalf.local.home
Cc: Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 7491e2c442 ("tracing: Add a probe that attaches to trace events")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
fpregs lock disables preemption on RT but fpu_inherit_perms() does
spin_lock_irq(), which, on RT, uses rtmutexes and they need to be
preemptible.
- Check the page offset and the length of the data supplied by userspace
for overflow when specifying a set of pages to add to an SGX enclave
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Merge tag 'x86_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Do not hold fpregs lock when inheriting FPU permissions because the
fpregs lock disables preemption on RT but fpu_inherit_perms() does
spin_lock_irq(), which, on RT, uses rtmutexes and they need to be
preemptible.
- Check the page offset and the length of the data supplied by
userspace for overflow when specifying a set of pages to add to an
SGX enclave
* tag 'x86_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Drop fpregs lock before inheriting FPU permissions
x86/sgx: Add overflow check in sgx_validate_offset_length()
misunderstanding whether the task holds rq->lock or not
- Prevent processes from getting killed when using deprecated or unknown
rseq ABI flags in order to be able to fuzz the rseq() syscall with
syzkaller
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Merge tag 'sched_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Fix a small race on the task's exit path where there's a
misunderstanding whether the task holds rq->lock or not
- Prevent processes from getting killed when using deprecated or
unknown rseq ABI flags in order to be able to fuzz the rseq() syscall
with syzkaller
* tag 'sched_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix race in task_call_func()
rseq: Use pr_warn_once() when deprecated/unknown ABI flags are encountered
for more than 4K
- Fix a NULL ptr dereference which can happen after an NMI interferes
with the event enabling dance in amd_pmu_enable_all()
- Free the events array too when freeing uncore contexts on CPU online,
thereby fixing a memory leak
- Improve the pending SIGTRAP check
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Merge tag 'perf_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Fix an intel PT erratum where CPUs do not support single range output
for more than 4K
- Fix a NULL ptr dereference which can happen after an NMI interferes
with the event enabling dance in amd_pmu_enable_all()
- Free the events array too when freeing uncore contexts on CPU online,
thereby fixing a memory leak
- Improve the pending SIGTRAP check
* tag 'perf_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/pt: Fix sampling using single range output
perf/x86/amd: Fix crash due to race between amd_pmu_enable_all, perf NMI and throttling
perf/x86/amd/uncore: Fix memory leak for events array
perf: Improve missing SIGTRAP checking
- Fix writable sections being moved into the rodata region.
Thanks to: Nicholas Piggin, Christophe Leroy.
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Merge tag 'powerpc-6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
- Fix writable sections being moved into the rodata region.
Thanks to Nicholas Piggin and Christophe Leroy.
* tag 'powerpc-6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Fix writable sections being moved into the rodata region
Five small fixes, all in drivers. Most of these are error leg freeing
issues, with the only really user visible one being the zfcp fix.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five small fixes, all in drivers.
Most of these are error leg freeing issues, with the only really user
visible one being the zfcp fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: iscsi: Fix possible memory leak when device_register() failed
scsi: zfcp: Fix double free of FSF request when qdio send fails
scsi: scsi_debug: Fix possible UAF in sdebug_add_host_helper()
scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()
scsi: mpi3mr: Suppress command reply debug prints
Including:
- Fix presetting accessed bits in Intel VT-d page-directory
entries to avoid hardware error
- Set supervisor bit only when Intel IOMMU has the SRS
capability
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Merge tag 'iommu-fixes-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Preset accessed bits in Intel VT-d page-directory entries to avoid
hardware error
- Set supervisor bit only when Intel IOMMU has the SRS capability
* tag 'iommu-fixes-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Set SRE bit only when hardware has SRS cap
iommu/vt-d: Preset Access bit for IOVA in FL non-leaf paging entries
- Update MAINTAINERS with Nathan and Nicolas as new Kbuild reviewers.
- Increment the debian revision for deb-pkg builds
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Merge tag 'kbuild-fixes-v6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Update MAINTAINERS with Nathan and Nicolas as new Kbuild reviewers
- Increment the debian revision for deb-pkg builds
* tag 'kbuild-fixes-v6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: Restore .version auto-increment behaviour for Debian packages
MAINTAINERS: Add linux-kbuild's patchwork
MAINTAINERS: Remove Michal Marek from Kbuild maintainers
MAINTAINERS: Add Nathan and Nicolas to Kbuild reviewers
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Merge tag '6.1-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
- two missing and one incorrect return value checks
- fix leak on tlink mount failure
* tag '6.1-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: add check for returning value of SMB2_set_info_init
cifs: Fix wrong return value checking when GETFLAGS
cifs: add check for returning value of SMB2_close_init
cifs: Fix connections leak when tlink setup failed
SRS cap is the hardware cap telling if the hardware IOMMU can support
requests seeking supervisor privilege or not. SRE bit in scalable-mode
PASID table entry is treated as Reserved(0) for implementation not
supporting SRS cap.
Checking SRS cap before setting SRE bit can avoid the non-recoverable
fault of "Non-zero reserved field set in PASID Table Entry" caused by
setting SRE bit while there is no SRS cap support. The fault messages
look like below:
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read NO_PASID] Request device [00:0d.0] fault addr 0x1154e1000
[fault reason 0x5a]
SM: Non-zero reserved field set in PASID Table Entry
Fixes: 6f7db75e1c ("iommu/vt-d: Add second level page table interface")
Cc: stable@vger.kernel.org
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20221115070346.1112273-1-tina.zhang@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20221116051544.26540-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The A/D bits are preseted for IOVA over first level(FL) usage for both
kernel DMA (i.e, domain typs is IOMMU_DOMAIN_DMA) and user space DMA
usage (i.e., domain type is IOMMU_DOMAIN_UNMANAGED).
Presetting A bit in FL requires to preset the bit in every related paging
entries, including the non-leaf ones. Otherwise, hardware may treat this
as an error. For example, in a case of ECAP_REG.SMPWC==0, DMA faults might
occur with below DMAR fault messages (wrapped for line length) dumped.
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read NO_PASID] Request device [aa:00.0] fault addr 0x10c3a6000
[fault reason 0x90]
SM: A/D bit update needed in first-level entry when set up in no snoop
Fixes: 289b3b005c ("iommu/vt-d: Preset A/D bits for user space DMA usage")
Cc: stable@vger.kernel.org
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20221113010324.1094483-1-tina.zhang@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20221116051544.26540-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
- a fix for 8042 to stop leaking platform device on unload
- a fix for Goodix touchscreens on devices like Nanote UMPC-01 where we
need to reset controller to load config from firmware
- a workaround for Acer Switch to avoid interrupt storm from home and
power buttons
- a workaround for more ASUS ZenBook models to detect keyboard
controller
- a fix for iforce driver to properly handle communication errors
- touchpad on HP Laptop 15-da3001TU switched to RMI mode
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Merge tag 'input-for-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for 8042 to stop leaking platform device on unload
- a fix for Goodix touchscreens on devices like Nanote UMPC-01 where we
need to reset controller to load config from firmware
- a workaround for Acer Switch to avoid interrupt storm from home and
power buttons
- a workaround for more ASUS ZenBook models to detect keyboard
controller
- a fix for iforce driver to properly handle communication errors
- touchpad on HP Laptop 15-da3001TU switched to RMI mode
* tag 'input-for-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - fix leaking of platform device on module removal
Input: i8042 - apply probe defer to more ASUS ZenBook models
Input: soc_button_array - add Acer Switch V 10 to dmi_use_low_level_irq[]
Input: soc_button_array - add use_low_level_irq module parameter
Input: iforce - invert valid length check when fetching device IDs
Input: goodix - try resetting the controller when no config is set
dt-bindings: input: touchscreen: Add compatible for Goodix GT7986U chip
Input: synaptics - switch touchpad on HP Laptop 15-da3001TU to RMI mode
- Fix the IO error recovery path for failures happening in the last
zone of device, and that zone is a "runt" zone (smaller than the
other zone). The current code was failing to properly obtain a zone
report in that case.
- Remove the unused to_attr() function as it is unused, causing
compilation warnings with clang.
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Merge tag 'zonefs-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fixes from Damien Le Moal:
- Fix the IO error recovery path for failures happening in the last
zone of device, and that zone is a "runt" zone (smaller than the
other zone). The current code was failing to properly obtain a zone
report in that case.
- Remove the unused to_attr() function as it is unused, causing
compilation warnings with clang.
* tag 'zonefs-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: Remove to_attr() helper function
zonefs: fix zone report size in __zonefs_io_error()
Avoid resetting the module-wide i8042_platform_device pointer in
i8042_probe() or i8042_remove(), so that the device can be properly
destroyed by i8042_exit() on module unload.
Fixes: 9222ba68c3 ("Input: i8042 - add deferred probe support")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Link: https://lore.kernel.org/r/20221109034148.23821-1-chenjun102@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'io_uring-6.1-2022-11-18' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"This is mostly fixing issues around the poll rework, but also two
tweaks for the multishot handling for accept and receive.
All stable material"
* tag 'io_uring-6.1-2022-11-18' of git://git.kernel.dk/linux:
io_uring: disallow self-propelled ring polling
io_uring: fix multishot recv request leaks
io_uring: fix multishot accept request leaks
io_uring: fix tw losing poll events
io_uring: update res mask in io_poll_check_events
- Fix a build error with CONFIG_CFI_CLANG + CONFIG_FTRACE when
CONFIG_FUNCTION_GRAPH_TRACER is not enabled.
- Fix a BUG_ON triggered by the page table checker due to incorrect
file_map_count for non-leaf pmd/pud (the arm64
pmd_user_accessible_page() not checking whether it's a leaf entry).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Fix a build error with CONFIG_CFI_CLANG + CONFIG_FTRACE when
CONFIG_FUNCTION_GRAPH_TRACER is not enabled.
- Fix a BUG_ON triggered by the page table checker due to incorrect
file_map_count for non-leaf pmd/pud (the arm64
pmd_user_accessible_page() not checking whether it's a leaf entry).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/mm: fix incorrect file_map_count for non-leaf pmd/pud
arm64: ftrace: Define ftrace_stub_graph only with FUNCTION_GRAPH_TRACER
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Merge tag 'block-6.1-2022-11-18' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- Two more bogus nid quirks (Bean Huo, Tiago Dias Ferreira)
- Memory leak fix in nvmet (Sagi Grimberg)
- Regression fix for block cgroups pinning the wrong blkcg, causing
leaks of cgroups and blkcgs (Chris)
- UAF fix for drbd setup error handling (Dan)
- Fix DMA alignment propagation in DM (Keith)
* tag 'block-6.1-2022-11-18' of git://git.kernel.dk/linux:
dm-log-writes: set dma_alignment limit in io_hints
dm-integrity: set dma_alignment limit in io_hints
block: make blk_set_default_limits() private
dm-crypt: provide dma_alignment limit in io_hints
block: make dma_alignment a stacking queue_limit
nvmet: fix a memory leak in nvmet_auth_set_key
nvme-pci: add NVME_QUIRK_BOGUS_NID for Netac NV7000
drbd: use after free in drbd_create_device()
nvme-pci: add NVME_QUIRK_BOGUS_NID for Micron Nitro
blk-cgroup: properly pin the parent in blkcg_css_online
core:
- Fix potential memory leak in drm_dev_init()
- Fix potential null-ptr-deref in drm_vblank_destroy_worker()
- Revert hiding unregistered connectors from userspace, as it breaks on DP-MST.
- Add workaround for DP++ dual mode adaptors that don't support
i2c subaddressing.
i915:
- Fix uaf with lmem_userfault_list handling
amdgpu:
- gang submit fixes
- Fix a possible memory leak in ganng submit error path
- DP tunneling fixes
- DCN 3.1 page flip fix
- DCN 3.2.x fixes
- DCN 3.1.4 fixes
- Don't expose degamma on hardware that doesn't support it
- BACO fixes for SMU 11.x
- BACO fixes for SMU 13.x
- Virtual display fix for devices with no display hardware
amdkfd:
- Memory limit regression fix
tegra:
- tegra20 GART fix
vc4:
- Fix error handling in vc4_atomic_commit_tail()
lima:
- Set lima's clkname corrrectly when regulator is missing.
panel:
- Set bpc for logictechno panels.
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Merge tag 'drm-fixes-2022-11-19' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"I guess the main question is are things settling down, and I'd say
kinda, these are all pretty small fixes, nothing big stands out
really, just seems to be quite a few of them.
Mostly amdgpu and core fixes, with some i915, tegra, vc4, panel bits.
core:
- Fix potential memory leak in drm_dev_init()
- Fix potential null-ptr-deref in drm_vblank_destroy_worker()
- Revert hiding unregistered connectors from userspace, as it breaks
on DP-MST
- Add workaround for DP++ dual mode adaptors that don't support i2c
subaddressing
i915:
- Fix uaf with lmem_userfault_list handling
amdgpu:
- gang submit fixes
- Fix a possible memory leak in ganng submit error path
- DP tunneling fixes
- DCN 3.1 page flip fix
- DCN 3.2.x fixes
- DCN 3.1.4 fixes
- Don't expose degamma on hardware that doesn't support it
- BACO fixes for SMU 11.x
- BACO fixes for SMU 13.x
- Virtual display fix for devices with no display hardware
amdkfd:
- Memory limit regression fix
tegra:
- tegra20 GART fix
vc4:
- Fix error handling in vc4_atomic_commit_tail()
lima:
- Set lima's clkname corrrectly when regulator is missing
panel:
- Set bpc for logictechno panels"
* tag 'drm-fixes-2022-11-19' of git://anongit.freedesktop.org/drm/drm: (28 commits)
gpu: host1x: Avoid trying to use GART on Tegra20
drm/display: Don't assume dual mode adaptors support i2c sub-addressing
drm/amd/pm: fix SMU13 runpm hang due to unintentional workaround
drm/amd/pm: enable runpm support over BACO for SMU13.0.7
drm/amd/pm: enable runpm support over BACO for SMU13.0.0
drm/amdgpu: there is no vbios fb on devices with no display hw (v2)
drm/amdkfd: Fix a memory limit issue
drm/amdgpu: disable BACO support on more cards
drm/amd/display: don't enable DRM CRTC degamma property for DCE
drm/amd/display: Set max for prefetch lines on dcn32
drm/amd/display: use uclk pstate latency for fw assisted mclk validation dcn32
drm/amd/display: Fix prefetch calculations for dcn32
drm/amd/display: Fix optc2_configure warning on dcn314
drm/amd/display: Fix calculation for cursor CAB allocation
Revert "drm: hide unregistered connectors from GETCONNECTOR IOCTL"
drm/amd/display: Support parsing VRAM info v3.0 from VBIOS
drm/amd/display: Fix invalid DPIA AUX reply causing system hang
drm/amdgpu: Add psp_13_0_10_ta firmware to modinfo
drm/amd/display: Add HUBP surface flip interrupt handler
drm/amd/display: Fix access timeout to DPIA AUX at boot time
...
- Fix deadlock in discontiguous saved segments (DCSS) block device
driver. When adding a disk and scanning partitions the scan would
not break out early without a missed flag.
- Avoid using global register variable for current_stack_pointer
due to an old bug in gcc versions prior to gcc-8.4. Due to this
bug a broken code is generated, which leads to stack corruptions.
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Merge tag 's390-6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Alexander Gordeev:
- Fix deadlock in discontiguous saved segments (DCSS) block device
driver. When adding a disk and scanning partitions the scan would not
break out early without a missed flag.
- Avoid using global register variable for current_stack_pointer due to
an old bug in gcc versions prior to gcc-8.4. Due to this bug a broken
code is generated, which leads to stack corruptions.
* tag 's390-6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: avoid using global register for current_stack_pointer
s390/dcssblk: fix deadlock when adding a DCSS
loading.
- Fix missing decrement of no_sleep_enabled if dm_bufio_client_create
failed.
- Allow DM integrity devices to be activated in read-only mode.
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Merge tag 'for-6.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix misbehavior if list_versions DM ioctl races with module loading
- Fix missing decrement of no_sleep_enabled if dm_bufio_client_create
failed
- Allow DM integrity devices to be activated in read-only mode
* tag 'for-6.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm integrity: clear the journal on suspend
dm integrity: flush the journal on suspend
dm bufio: Fix missing decrement of no_sleep_enabled if dm_bufio_client_create failed
dm ioctl: fix misbehavior if list_versions races with module loading
This contains a single fix that avoids using the GART on Tegra20 because
it doesn't work well with the way the Tegra DRM driver tries to use it.
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Merge tag 'drm/tegra/for-6.1-rc6' of https://gitlab.freedesktop.org/drm/tegra into drm-fixes
drm/tegra: Fixes for v6.1-rc6
This contains a single fix that avoids using the GART on Tegra20 because
it doesn't work well with the way the Tegra DRM driver tries to use it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118121614.3511110-1-thierry.reding@gmail.com
Here are a number of USB driver fixes and new device ids for 6.1-rc6.
Included in here are:
- new usb-serial device ids
- dwc3 driver fixes for reported problems
- cdns3 driver fixes
- new USB device quirks
- typec driver fixes
- extcon USB typec driver fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are a number of USB driver fixes and new device ids for 6.1-rc6.
Included in here are:
- new usb-serial device ids
- dwc3 driver fixes for reported problems
- cdns3 driver fixes
- new USB device quirks
- typec driver fixes
- extcon USB typec driver fix
All of these have been in linux-next with no reported issues"
* tag 'usb-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: option: add u-blox LARA-L6 modem
USB: serial: option: add u-blox LARA-R6 00B modem
USB: serial: option: remove old LARA-R6 PID
USB: serial: option: add Fibocom FM160 0x0111 composition
usb: add NO_LPM quirk for Realforce 87U Keyboard
usb: cdns3: host: fix endless superspeed hub port reset
usb: chipidea: fix deadlock in ci_otg_del_timer
usb: dwc3: Do not get extcon device when usb-role-switch is used
usb: typec: tipd: Prevent uninitialized event{1,2} in IRQ handler
usb: typec: mux: Enter safe mode only when pins need to be reconfigured
extcon: usbc-tusb320: Call the Type-C IRQ handler only if a port is registered
Revert "usb: dwc3: disable USB core PHY management"
usb: dwc3: gadget: Return -ESHUTDOWN on ep disable
USB: bcma: Make GPIO explicitly optional
USB: serial: option: add Sierra Wireless EM9191
Here is a single staging driver fix for 6.1-rc6.
It resolves a bogus signed character test as pointed out, and fixed by,
Jason in the rtl8192e driver
It has been in linux-next for a few weeks now with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix for 6.1-rc6.
It resolves a bogus signed character test as pointed out, and fixed
by, Jason in the rtl8192e driver
It has been in linux-next for a few weeks now with no reported
problems"
* tag 'staging-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8192e: remove bogus ssid character sign test
Here are a number of small tty and serial driver fixes for 6.1-rc6.
They all resolve reported problems:
- kernel doc build problems with the -rc1 serial driver
documentation update
- n_gsm reported problems
- imx serial driver missing callback
- lots of tiny 8250 driver fixes for reported issues.
All of these have been in linux-next for over a week with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are a number of small tty and serial driver fixes for 6.1-rc6.
They all resolve reported problems:
- kernel doc build problems with the -rc1 serial driver documentation
update
- n_gsm reported problems
- imx serial driver missing callback
- lots of tiny 8250 driver fixes for reported issues.
All of these have been in linux-next for over a week with no reported
problems"
* tag 'tty-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
docs/driver-api/miscellaneous: Remove kernel-doc of serial_core.c
serial: 8250: Flush DMA Rx on RLSI
serial: 8250_lpss: Use 16B DMA burst with Elkhart Lake
serial: 8250_lpss: Configure DMA also w/o DMA filter
serial: 8250: Fall back to non-DMA Rx if IIR_RDI occurs
tty: n_gsm: fix sleep-in-atomic-context bug in gsm_control_send
Revert "tty: n_gsm: replace kicktimer with delayed_work"
Revert "tty: n_gsm: avoid call of sleeping functions from atomic context"
serial: imx: Add missing .thaw_noirq hook
tty: serial: fsl_lpuart: don't break the on-going transfer when global reset
serial: 8250: omap: Flush PM QOS work on remove
serial: 8250: omap: Fix unpaired pm_runtime_put_sync() in omap8250_remove()
serial: 8250_omap: remove wait loop from Errata i202 workaround
serial: 8250: omap: Fix missing PM runtime calls for omap8250_set_mctrl()
serial: 8250: 8250_omap: Avoid RS485 RTS glitch on ->set_termios()
Here are 2 small driver core fixes for 6.1-rc6:
- utsname fix, this one should already be in your tree as it
came from a different tree earlier.
- kernfs bugfix for a much reported syzbot report that seems to
keep getting triggered.
Both of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are two small driver core fixes for 6.1-rc6:
- utsname fix, this one should already be in your tree as it came
from a different tree earlier.
- kernfs bugfix for a much reported syzbot report that seems to keep
getting triggered.
Both of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: Fix spurious lockdep warning in kernfs_find_and_get_node_by_id()
kernel/utsname_sysctl.c: Add missing enum uts_proc value
Here are some small char/misc and other driver fixes for 6.1-rc6 to
resolve some reported problems. Included in here are:
- iio driver fixes
- binder driver fix
- nvmem driver fix
- vme_vmci information leak fix
- parport fix
- slimbus configuration fix
- coreboot firmware bugfix
- speakup build fix and crash fix
All of these have been in linux-next for a while with no reported issues
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-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 char/misc and other driver fixes for 6.1-rc6 to
resolve some reported problems. Included in here are:
- iio driver fixes
- binder driver fix
- nvmem driver fix
- vme_vmci information leak fix
- parport fix
- slimbus configuration fix
- coreboot firmware bugfix
- speakup build fix and crash fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (22 commits)
firmware: coreboot: Register bus in module init
nvmem: u-boot-env: fix crc32_data_offset on redundant u-boot-env
slimbus: qcom-ngd: Fix build error when CONFIG_SLIM_QCOM_NGD_CTRL=y && CONFIG_QCOM_RPROC_COMMON=m
docs: update mediator contact information in CoC doc
slimbus: stream: correct presence rate frequencies
nvmem: lan9662-otp: Fix compatible string
binder: validate alloc->mm in ->mmap() handler
parport_pc: Avoid FIFO port location truncation
siox: fix possible memory leak in siox_device_add()
misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()
speakup: replace utils' u_char with unsigned char
speakup: fix a segfault caused by switching consoles
tools: iio: iio_generic_buffer: Fix read size
iio: imu: bno055: uninitialized variable bug in bno055_trigger_handler()
iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()
iio: adc: mp2629: fix potential array out of bound access
iio: adc: mp2629: fix wrong comparison of channel
iio: pressure: ms5611: changed hardcoded SPI speed to value limited
iio: pressure: ms5611: fixed value compensation bug
iio: accel: bma400: Ensure VDDIO is enable defore reading the chip ID.
...
A fair amount of commits at this time due to ASoC PR merge, but all
look small and easy, mostly device-specific fixes spanned in various
drivers. Hopefully this should be the last big chunk for 6.1.
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Merge tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A fair amount of commits at this time due to ASoC PR merge, but all
look small and easy, mostly device-specific fixes spanned in various
drivers. Hopefully this should be the last big chunk for 6.1"
* tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book Pro 360
ALSA: hda/realtek: fix speakers for Samsung Galaxy Book Pro
ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open()
ASoC: stm32: dfsdm: manage cb buffers cleanup
ASoC: sof_es8336: reduce pop noise on speaker
ASoC: SOF: topology: No need to assign core ID if token parsing failed
ASoC: soc-utils: Remove __exit for snd_soc_util_exit()
ASoC: rt5677: fix legacy dai naming
ASoC: rt5514: fix legacy dai naming
ASoC: SOF: ipc3-topology: use old pipeline teardown flow with SOF2.1 and older
ASoC: hda: intel-dsp-config: add ES83x6 quirk for IceLake
ASoC: Intel: soc-acpi: add ES83x6 support to IceLake
ASoC: tas2780: Fix set_tdm_slot in case of single slot
ASoC: tas2764: Fix set_tdm_slot in case of single slot
ASoC: tas2770: Fix set_tdm_slot in case of single slot
ASoC: fsl_asrc fsl_esai fsl_sai: allow CONFIG_PM=N
ASoC: core: Fix use-after-free in snd_soc_exit()
MAINTAINERS: update Tzung-Bi's email address
ASoC: Intel: bytcht_es8316: Add quirk for the Nanote UMPC-01
ASoC: amd: yc: Add Alienware m17 R5 AMD into DMI table
...
When we post a CQE we wake all ring pollers as it normally should be.
However, if a CQE was generated by a multishot poll request targeting
its own ring, it'll wake that request up, which will make it to post
a new CQE, which will wake the request and so on until it exhausts all
CQ entries.
Don't allow multishot polling io_uring files but downgrade them to
oneshots, which was always stated as a correct behaviour that the
userspace should check for.
Cc: stable@vger.kernel.org
Fixes: aa43477b04 ("io_uring: poll rework")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/3124038c0e7474d427538c2d915335ec28c92d21.1668785722.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There was a problem that a user burned a dm-integrity image on CDROM
and could not activate it because it had a non-empty journal.
Fix this problem by flushing the journal (done by the previous commit)
and clearing the journal (done by this commit). Once the journal is
cleared, dm-integrity won't attempt to replay it on the next
activation.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
