syzbot


kernel panic: corrupted stack end in sys_inotify_rm_watch

Status: auto-closed as invalid on 2020/08/05 00:41
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+d431c5982fbe4f84ed54@syzkaller.appspotmail.com
First crash: 1450d, last: 1450d

Sample crash report:
Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 1 PID: 23929 Comm: systemd-udevd Not tainted 5.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 schedule_debug kernel/sched/core.c:3879 [inline]
 __schedule+0x1fe0/0x1ff0 kernel/sched/core.c:4013
 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:4239
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:50
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:393 [inline]
 fsnotify_put_mark+0x2e8/0x580 fs/notify/mark.c:275
 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:790 [inline]
 __se_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:762 [inline]
 __x64_sys_inotify_rm_watch+0x11d/0x190 fs/notify/inotify/inotify_user.c:762
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7f69229de427
Code: 73 01 c3 48 8b 0d 71 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 ff 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 fa 2a 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc0be45868 EFLAGS: 00000246 ORIG_RAX: 00000000000000ff
RAX: ffffffffffffffda RBX: 0000563a386fecb0 RCX: 00007f69229de427
RDX: 0000000000000007 RSI: 000000000000084e RDI: 0000000000000009
RBP: 000000000000084e R08: 0000563a38708d40 R09: 0000000000000020
R10: 39db172e334a3d76 R11: 0000000000000246 R12: 00007ffc0be45980
R13: 0000563a386fecb0 R14: 0000000000000003 R15: 000000000000000e
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/05/07 00:40 upstream 3c40cdb0e93e 4618eb2d .config console log report ci-upstream-kasan-gce-selinux-root
* Struck through repros no longer work on HEAD.