syzbot


general protection fault in event_sched_in

Status: auto-closed as invalid on 2019/09/02 23:48
Subsystems: trace
[Documentation on labels]
Reported-by: syzbot+0acc40232771415e6fac@syzkaller.appspotmail.com
First crash: 1871d, last: 1871d

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2371 Comm: syz-executor.4 Not tainted 5.0.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:514 [inline]
RIP: 0010:perf_trace_add+0x20c/0x2d0 kernel/trace/trace_event_perf.c:369
Code: 00 0f 85 c4 00 00 00 4d 85 f6 4d 89 3c 24 74 2a e8 c9 15 f9 ff 49 8d 7e 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a4 00 00 00 4d 89 7e 08 eb 03 45 31 ed e8 9c 15
RSP: 0018:ffff8880964676b0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffff888097ccc8c0 RCX: ffffc90006623000
RDX: 000000000000013c RSI: ffffffff81771417 RDI: 00000000000009e0
RBP: ffff8880964676e0 R08: ffff8880a4674680 R09: ffffffff8999c008
R10: ffffffff8999c010 R11: 0000000000000001 R12: ffffe8ffffc2eb88
R13: 0000000000000000 R14: 00000000000009d8 R15: ffff888097ccc920
FS:  00007fa4d0e92700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000d379 CR3: 00000000a0e06000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 event_sched_in kernel/events/core.c:2281 [inline]
 event_sched_in.isra.0+0x373/0xbf0 kernel/events/core.c:2245
 group_sched_in+0xe4/0x3d0 kernel/events/core.c:2317
 flexible_sched_in+0x615/0x9c0 kernel/events/core.c:3311
 visit_groups_merge+0x336/0x5d0 kernel/events/core.c:3259
 ctx_flexible_sched_in kernel/events/core.c:3345 [inline]
 ctx_sched_in+0x330/0x670 kernel/events/core.c:3390
 perf_event_sched_in+0x6e/0xa0 kernel/events/core.c:2426
 ctx_resched+0xc1/0x140 kernel/events/core.c:2476
 __perf_install_in_context+0x4cd/0x960 kernel/events/core.c:2534
 remote_function kernel/events/core.c:86 [inline]
 remote_function+0x12b/0x1a0 kernel/events/core.c:66
 generic_exec_single+0x284/0x4b0 kernel/smp.c:153
 smp_call_function_single+0x12d/0x420 kernel/smp.c:299
 task_function_call+0xe9/0x180 kernel/events/core.c:114
 perf_install_in_context+0x237/0x3d0 kernel/events/core.c:2611
 __do_sys_perf_event_open+0x1843/0x24d0 kernel/events/core.c:11057
 __se_sys_perf_event_open kernel/events/core.c:10686 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10686
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa4d0e91c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457f29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000200
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa4d0e926d4
R13: 00000000004c4591 R14: 00000000004d7cf8 R15: 00000000ffffffff
Modules linked in:

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Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/03/06 23:47 upstream afe6fe7036c6 18215b8d .config console log report ci-upstream-kasan-gce-smack-root
* Struck through repros no longer work on HEAD.