syzbot


WARNING in path_openat

Status: auto-obsoleted due to no activity on 2023/09/28 05:21
Reported-by: syzbot+591c81de9e853e6b133d@syzkaller.appspotmail.com
First crash: 369d, last: 319d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in path_openat fs C error done 71 5h29m 519d 0/26 upstream: reported C repro on 2022/12/02 03:18
linux-6.1 WARNING in path_openat (2) 1 5d05h 5d05h 0/3 upstream: reported on 2024/04/29 18:46
linux-6.1 WARNING in path_openat 5 175d 373d 0/3 auto-obsoleted due to no activity on 2024/02/19 01:27

Sample crash report:
WARNING: CPU: 0 PID: 28122 at kernel/locking/rwsem.c:1342 __up_write kernel/locking/rwsem.c:1341 [inline]
WARNING: CPU: 0 PID: 28122 at kernel/locking/rwsem.c:1342 up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594
Modules linked in:
CPU: 0 PID: 28122 Comm: syz-executor.3 Not tainted 5.15.117-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__up_write kernel/locking/rwsem.c:1341 [inline]
RIP: 0010:up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594
Code: 48 c7 c7 e0 ef 8a 8a 48 c7 c6 a0 f2 8a 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 f1 12 ea ff 48 83 c4 08 <0f> 0b e9 86 fd ff ff 48 c7 c1 08 f8 e3 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90002fff840 EFLAGS: 00010292
RAX: d792e0292b196200 RBX: ffffffff8a8af0c0 RCX: 0000000000040000
RDX: ffffc900110e9000 RSI: 000000000003facf RDI: 000000000003fad0
RBP: ffffc90002fff910 R08: ffffffff8166491c R09: ffffed1017344f24
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888031078a90 R14: 1ffff920005fff10 R15: dffffc0000000000
FS:  00007f5ee710a700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e32c000 CR3: 0000000029d48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:792 [inline]
 open_last_lookups fs/namei.c:3466 [inline]
 path_openat+0x1558/0x2f20 fs/namei.c:3669
 do_filp_open+0x21c/0x460 fs/namei.c:3699
 do_sys_openat2+0x13b/0x500 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_open fs/open.c:1235 [inline]
 __se_sys_open fs/open.c:1231 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1231
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f5ef0db9389
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:00007f5ee710a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5ef0ed9050 RCX: 00007f5ef0db9389
RDX: 0000000000000000 RSI: 0000000000064842 RDI: 00000000200005c0
RBP: 00007f5ef0e04493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff64c4898f R14: 00007f5ee710a300 R15: 0000000000022000
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/20 05:20 linux-5.15.y 471e639e59d1 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in path_openat
2023/05/01 11:01 linux-5.15.y 8a7f2a5c5aa1 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in path_openat
* Struck through repros no longer work on HEAD.