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| author | Masami Hiramatsu <[email protected]> | 2018-04-09 12:16:54 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-04-10 05:33:10 +0000 |
| commit | 5da13ab8b0dcaa984c45ae43edf5a4d148603d42 (patch) | |
| tree | 54c985473a05090c63dac01caedd49c6b608f23d /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | Merge tag 'perf-urgent-for-mingo-4.17-20180409' of git://git.kernel.org/pub/s... (diff) | |
| download | kernel-5da13ab8b0dcaa984c45ae43edf5a4d148603d42.tar.gz kernel-5da13ab8b0dcaa984c45ae43edf5a4d148603d42.zip | |
perf/core: Fix perf_kprobe_init()
Fix error handling in perf_kprobe_init():
==================================================================
BUG: KASAN: slab-out-of-bounds in strlen+0x8e/0xa0 lib/string.c:482
Read of size 1 at addr ffff88003f9cc5c0 by task syz-executor2/23095
CPU: 0 PID: 23095 Comm: syz-executor2 Not tainted 4.16.0+ #24
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xca/0x13e lib/dump_stack.c:113
print_address_description+0x6e/0x2c0 mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report+0x256/0x380 mm/kasan/report.c:412
strlen+0x8e/0xa0 lib/string.c:482
kstrdup+0x21/0x70 mm/util.c:55
alloc_trace_kprobe+0xc8/0x930 kernel/trace/trace_kprobe.c:325
create_local_trace_kprobe+0x4f/0x3a0 kernel/trace/trace_kprobe.c:1438
perf_kprobe_init+0x149/0x1f0 kernel/trace/trace_event_perf.c:264
perf_kprobe_event_init+0xa8/0x120 kernel/events/core.c:8407
perf_try_init_event+0xcb/0x2a0 kernel/events/core.c:9719
perf_init_event kernel/events/core.c:9750 [inline]
perf_event_alloc+0x1367/0x1e20 kernel/events/core.c:10022
SYSC_perf_event_open+0x242/0x2330 kernel/events/core.c:10477
do_syscall_64+0x198/0x640 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Reported-by: 范龙飞 <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: e12f03d7031a ("perf/core: Implement the 'perf_kprobe' PMU")
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions