syzbot


WARNING in notify_change

Status: auto-obsoleted due to no activity on 2024/11/14 17:33
Reported-by: syzbot+c291b6d61bc0f5c8615c@syzkaller.appspotmail.com
First crash: 255d, last: 136d
Similar bugs (9)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in notify_change C done 14 2010d 2075d 1/1 fixed on 2019/11/30 21:02
upstream WARNING in notify_change (5) fs 15 185d 256d 0/28 auto-obsoleted due to no activity on 2024/09/01 10:33
upstream WARNING in notify_change (4) fs 1 426d 422d 0/28 auto-obsoleted due to no activity on 2024/01/19 20:10
upstream WARNING in notify_change (3) fs 2 604d 610d 0/28 auto-obsoleted due to no activity on 2023/07/26 12:25
upstream WARNING in notify_change (6) fs 2 86d 82d 0/28 auto-obsoleted due to no activity on 2024/11/25 06:24
upstream WARNING in notify_change (2) fuse C unreliable 2 759d 760d 22/28 fixed on 2023/02/24 13:50
linux-5.15 WARNING in notify_change origin:lts-only C unreliable 4 6d07h 374d 0/3 upstream: reported C repro on 2023/12/12 19:33
linux-4.19 WARNING in notify_change C done 12 2009d 2066d 1/1 fixed on 2019/12/01 09:13
upstream WARNING in notify_change fs C 566 2058d 2448d 12/28 fixed on 2019/07/24 12:46

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5405 at fs/attr.c:390 notify_change+0xd61/0xfc0
Modules linked in:
CPU: 0 PID: 5405 Comm: syz.3.440 Not tainted 6.1.103-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:notify_change+0xd61/0xfc0 fs/attr.c:390
Code: e6 e8 f3 40 06 02 4c 89 e7 89 de e8 89 84 06 02 45 31 f6 44 89 f0 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 df ac 91 ff <0f> 0b e9 66 f3 ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c e9 f2 ff
RSP: 0018:ffffc9000361fc10 EFLAGS: 00010283
RAX: ffffffff81f8f3c1 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc90005681000 RSI: 0000000000007042 RDI: 0000000000007043
RBP: ffffffff8d1d5520 R08: ffffffff81f8e720 R09: ffffed100bc6c7ac
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88805e3228d0 R14: ffff88805e363c78 R15: ffffc9000361fd60
FS:  00007f43655b86c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002067c030 CR3: 0000000066366000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 chown_common+0x5aa/0x900 fs/open.c:736
 do_fchownat+0x169/0x240 fs/open.c:767
 __do_sys_lchown fs/open.c:792 [inline]
 __se_sys_lchown fs/open.c:790 [inline]
 __x64_sys_lchown+0x81/0x90 fs/open.c:790
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f43647779f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f43655b8038 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007f4364906058 RCX: 00007f43647779f9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000100
RBP: 00007f43647e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4364906058 R15: 00007ffdd1848df8
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/06 17:32 linux-6.1.y 48d525b0e463 1ef9fe42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
2024/06/17 08:49 linux-6.1.y eb44d83053d6 88722c0f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
2024/06/04 02:45 linux-6.1.y 88690811da69 a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
2024/05/01 09:28 linux-6.1.y dcbc050cb0d3 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
2024/04/27 22:31 linux-6.1.y f2295faba5e8 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
2024/04/09 23:33 linux-6.1.y 347385861c50 171ec371 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in notify_change
* Struck through repros no longer work on HEAD.