syzbot


WARNING in notifier_call_chain (2)

Status: upstream: reported on 2024/12/12 20:53
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+c81bea693d8cd125f5f2@syzkaller.appspotmail.com
First crash: 12d, last: 9d06h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [kernel?] WARNING in notifier_call_chain (2) 0 (1) 2024/12/12 20:53
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in notifier_call_chain kernel 1 1538d 1538d 0/28 auto-closed as invalid on 2021/01/03 13:48

Sample crash report:
------------[ cut here ]------------
Invalid notifier called!
WARNING: CPU: 1 PID: 24239 at kernel/notifier.c:79 notifier_call_chain+0x395/0x410 kernel/notifier.c:79
Modules linked in:
CPU: 1 UID: 0 PID: 24239 Comm: init Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:notifier_call_chain+0x395/0x410 kernel/notifier.c:79
Code: 00 44 89 f8 48 83 c4 30 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 79 27 34 00 90 48 c7 c7 20 13 6c 8b e8 cc 72 f4 ff 90 <0f> 0b 90 90 e9 70 fd ff ff e8 5d 27 34 00 90 0f 0b 90 e9 2e fe ff
RSP: 0018:ffffc9000b5d7cc8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88807d6558c8 RCX: ffffffff815a5079
RDX: ffff88806677a440 RSI: ffffffff815a5086 RDI: 0000000000000001
RBP: 00000000fffffffd R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000006dc30 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f27f7527500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005575df75b600 CR3: 0000000031b0c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 blocking_notifier_call_chain kernel/notifier.c:380 [inline]
 blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:368
 kernel_shutdown_prepare kernel/reboot.c:299 [inline]
 kernel_power_off+0x1c/0xb0 kernel/reboot.c:702
 __do_sys_reboot+0x376/0x3e0 kernel/reboot.c:777
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f27f76808b4
Code: f0 ff ff 73 01 c3 48 8b 0d 71 55 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 89 fa be 69 19 12 28 bf ad de e1 fe b8 a9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 45 55 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff502ede88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a9
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f27f76808b4
RDX: 000000004321fedc RSI: 0000000028121969 RDI: 00000000fee1dead
RBP: 000000004321fedc R08: 0000000000000000 R09: 0000000000000000
R10: 00007fff502ede60 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff502edee8 R14: 000055e8723c1169 R15: 00007f27f785ea80
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/12 07:50 upstream 231825b2e1ff ff949d25 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in notifier_call_chain
2024/12/08 20:50 upstream 7503345ac5f5 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in notifier_call_chain
* Struck through repros no longer work on HEAD.