syzbot


WARNING in notify_change (4)

Status: auto-obsoleted due to no activity on 2024/01/19 20:10
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+304b0e676c8ae989bf66@syzkaller.appspotmail.com
First crash: 242d, last: 242d
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 1826d 1891d 1/1 fixed on 2019/11/30 21:02
upstream WARNING in notify_change (5) fs 15 1d05h 72d 0/27 moderation: reported on 2024/04/09 09:55
upstream WARNING in notify_change (3) fs 2 420d 426d 0/27 auto-obsoleted due to no activity on 2023/07/26 12:25
linux-6.1 WARNING in notify_change 5 3d06h 71d 0/3 upstream: reported on 2024/04/09 23:34
upstream WARNING in notify_change (2) fuse C unreliable 2 575d 576d 22/27 fixed on 2023/02/24 13:50
linux-5.15 WARNING in notify_change origin:lts-only C unreliable 3 75d 190d 0/3 upstream: reported C repro on 2023/12/12 19:33
linux-4.19 WARNING in notify_change C done 12 1825d 1882d 1/1 fixed on 2019/12/01 09:13
upstream WARNING in notify_change fs C 566 1874d 2264d 12/27 fixed on 2019/07/24 12:46

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5336 at fs/attr.c:390 notify_change+0xb3b/0x11c0 fs/attr.c:390
Modules linked in:
CPU: 1 PID: 5336 Comm: syz-executor.5 Not tainted 6.6.0-rc6-syzkaller-00285-g9c5d00cb7b6b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:notify_change+0xb3b/0x11c0 fs/attr.c:390
Code: bf ff ff ff ff 89 45 b0 e8 42 cc 92 ff 8b 45 b0 83 f8 ff 0f 85 c5 fa ff ff c7 45 bc b5 ff ff ff e9 27 fc ff ff e8 b5 d0 92 ff <0f> 0b e9 ad f5 ff ff e8 a9 d0 92 ff 45 89 e7 4c 89 f2 48 b8 00 00
RSP: 0018:ffffc9000537fca0 EFLAGS: 00010287
RAX: 0000000000009547 RBX: ffffc9000537fdb0 RCX: ffffc9000ab9e000
RDX: 0000000000040000 RSI: ffffffff81f4f93b RDI: 0000000000000007
RBP: ffffc9000537fd08 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffffc9000537fea8 R14: ffff88803a539870 R15: 0000000000000046
FS:  00007f9466d006c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3003e000 CR3: 000000006881c000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 chown_common+0x596/0x660 fs/open.c:783
 do_fchownat+0x140/0x1f0 fs/open.c:814
 __do_sys_chown fs/open.c:834 [inline]
 __se_sys_chown fs/open.c:832 [inline]
 __x64_sys_chown+0x7b/0xc0 fs/open.c:832
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f946607cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9466d000c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007f946619c050 RCX: 00007f946607cae9
RDX: 000000000000ee00 RSI: 0000000000000000 RDI: 00000000200001c0
RBP: 00007f94660c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f946619c050 R15: 00007ffe9183b328
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/10/21 20:09 upstream 9c5d00cb7b6b 361b23dc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in notify_change
* Struck through repros no longer work on HEAD.