syzbot


WARNING in notify_change (3)

Status: auto-obsoleted due to no activity on 2023/07/26 12:25
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+2065fb5f971306d2ca4c@syzkaller.appspotmail.com
First crash: 425d, last: 415d
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in notify_change C done 14 1821d 1887d 1/1 fixed on 2019/11/30 21:02
upstream WARNING in notify_change (5) fs 14 12d 67d 0/27 moderation: reported on 2024/04/09 09:55
upstream WARNING in notify_change (4) fs 1 238d 234d 0/27 auto-obsoleted due to no activity on 2024/01/19 20:10
linux-6.1 WARNING in notify_change 4 11d 67d 0/3 upstream: reported on 2024/04/09 23:34
upstream WARNING in notify_change (2) fuse C unreliable 2 570d 571d 22/27 fixed on 2023/02/24 13:50
linux-5.15 WARNING in notify_change origin:lts-only C unreliable 3 71d 186d 0/3 upstream: reported C repro on 2023/12/12 19:33
linux-4.19 WARNING in notify_change C done 12 1821d 1877d 1/1 fixed on 2019/12/01 09:13
upstream WARNING in notify_change fs C 566 1870d 2259d 12/27 fixed on 2019/07/24 12:46

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8802 at fs/attr.c:390 notify_change+0xcfa/0xf40
Modules linked in:
CPU: 1 PID: 8802 Comm: syz-executor.2 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:notify_change+0xcfa/0xf40 fs/attr.c:390
Code: ee e8 aa e0 fd 01 48 89 ef 89 de e8 a0 27 fe 01 45 31 f6 44 89 f0 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 36 e0 91 ff <0f> 0b e9 d2 f3 ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 54 f3 ff
RSP: 0018:ffffc90016017c08 EFLAGS: 00010283
RAX: ffffffff81f92a0a RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000c4bc000 RSI: 0000000000003163 RDI: 0000000000003164
RBP: ffff8880168b0d38 R08: ffffffff81f91dd5 R09: ffffed100a315b77
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90016017d60
R13: ffffffff8d04cce0 R14: ffff8880518adad0 R15: dffffc0000000000
FS:  00007fae40bf8700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f350e3a8000 CR3: 0000000075d12000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 chown_common+0x500/0x850 fs/open.c:774
 do_fchownat+0x16d/0x240 fs/open.c:805
 __do_sys_lchown fs/open.c:830 [inline]
 __se_sys_lchown fs/open.c:828 [inline]
 __x64_sys_lchown+0x85/0x90 fs/open.c:828
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fae3fe8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fae40bf8168 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007fae3ffac050 RCX: 00007fae3fe8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fae3fee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdedd2645f R14: 00007fae40bf8300 R15: 0000000000022000
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/04/27 12:25 upstream 6e98b09da931 6f3d6fa7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in notify_change
2023/04/17 01:35 upstream 3e7bb4f24617 ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in notify_change
* Struck through repros no longer work on HEAD.