WARNING in path_openat

Status: upstream: reported C repro on 2022/12/02 03:18
Subsystems: fs
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+be8872fcb764bf9fea73@syzkaller.appspotmail.com
First crash: 1395d, last: 53d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: fixed by (bisect log) :
commit 00e4feb8c0476bbde3c8bf4a593e0f82ca9a4df6
Author: Yazen Ghannam <yazen.ghannam@amd.com>
Date: Fri Jan 27 17:04:03 2023 +0000

  EDAC/amd64: Rename debug_display_dimm_sizes()

  
▶ ▼ ✨ AI Jobs (2)
ID Workflow Result Correct Bug Created Started Finished Revision
9ac4b6c9 assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ✅ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ WARNING in path_openat 2026/06/01 12:40 2026/06/01 12:40 2026/06/01 13:39 6b4a8443
4d074ad7 assessment-security 💥 WARNING in path_openat 2026/05/15 13:38 2026/05/15 13:38 2026/05/15 13:38 9cd3beaa
▶ ▼ Discussions (6)
Title Replies (including bot) Last reply
[syzbot] Monthly fs report (Aug 2026) 0 (1) 2026/08/11 04:32
[syzbot] Monthly fs report (Jul 2026) 0 (1) 2026/07/10 20:32
[syzbot] Monthly fs report (Feb 2024) 0 (1) 2024/02/12 21:31
[syzbot] Monthly fs report (Nov 2023) 0 (1) 2023/11/11 01:08
[syzbot] Monthly fs report (Oct 2023) 0 (1) 2023/10/10 13:22
[syzbot] WARNING in path_openat 1 (5) 2023/07/27 06:47
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in path_openat (4) -1 4 237d 368d 0/3 auto-obsoleted due to no activity on 2026/05/08 20:53
linux-5.15 WARNING in path_openat -1 2 1191d 1241d 0/3 auto-obsoleted due to no activity on 2023/09/28 05:21
linux-6.1 WARNING in path_openat (5) -1 4 2d22h 49d 0/3 upstream: reported on 2026/08/05 05:07
linux-5.15 WARNING in path_openat (3) origin:lts-only -1 syz, C error 4 13d 670d 0/3 upstream: reported C repro on 2024/11/22 02:14
linux-6.1 WARNING in path_openat (2) -1 12 695d 876d 0/3 auto-obsoleted due to no activity on 2025/02/05 09:53
linux-6.1 WARNING in path_openat (3) -1 1 520d 520d 0/3 auto-obsoleted due to no activity on 2025/07/30 00:00
linux-6.1 WARNING in path_openat -1 5 1047d 1245d 0/3 auto-obsoleted due to no activity on 2024/02/19 01:27
linux-5.15 WARNING in path_openat (2) -1 4 839d 870d 0/3 auto-obsoleted due to no activity on 2024/09/14 06:15
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/09/16 13:39 23m retest repro upstream no crash job log log
2026/06/05 18:50 21m retest repro upstream log
2025/07/11 04:16 1h20m retest repro upstream no crash log
2025/04/01 02:53 20m retest repro upstream report log
2024/12/27 22:25 13m retest repro upstream report log
2024/10/15 01:34 0m retest repro upstream error
2024/02/19 23:19 19m retest repro upstream no crash log
2024/02/19 23:19 20m retest repro upstream no crash log
2023/11/30 13:50 12m retest repro upstream report log
2023/11/30 12:31 23m retest repro linux-next no crash log

Sample crash report:
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880785fbd58, owner = 0x0, curr 0xffff88807dc60000, list empty
WARNING: CPU: 1 PID: 5328 at kernel/locking/rwsem.c:1370 __up_write kernel/locking/rwsem.c:1369 [inline]
WARNING: CPU: 1 PID: 5328 at kernel/locking/rwsem.c:1370 up_write+0x4f4/0x580 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 5328 Comm: syz-executor110 Not tainted 6.5.0-syzkaller-11938-g65d6e954e378 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__up_write kernel/locking/rwsem.c:1369 [inline]
RIP: 0010:up_write+0x4f4/0x580 kernel/locking/rwsem.c:1626
Code: 48 c7 c7 a0 9a 0a 8b 48 c7 c6 e0 9c 0a 8b 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 b0 12 e8 ff 48 83 c4 08 <0f> 0b e9 75 fd ff ff 48 c7 c1 08 65 9a 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90004baf880 EFLAGS: 00010292
RAX: 7c0ffd1807d4b400 RBX: ffffffff8b0a9b80 RCX: ffff88807dc60000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004baf950 R08: ffffffff81541672 R09: 1ffff92000975e7c
R10: dffffc0000000000 R11: fffff52000975e7d R12: 0000000000000000
R13: ffff8880785fbd58 R14: 1ffff92000975f18 R15: dffffc0000000000
FS:  00007f9c99c4c6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9ca106e000 CR3: 0000000020f30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:807 [inline]
 open_last_lookups fs/namei.c:3567 [inline]
 path_openat+0x163a/0x3180 fs/namei.c:3793
 do_filp_open+0x234/0x490 fs/namei.c:3823

Crashes (212):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/06 11:02 upstream 65d6e954e378 0b6286dc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in path_openat
2023/01/26 23:55 upstream 7c46948a6e9c 9dfcf09c .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in path_openat
2023/09/04 00:36 linux-next a47fc304d2b6 696ea0d2 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in path_openat
2023/05/25 07:54 linux-next 715abedee4cd 4bce1a3e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in path_openat
2023/01/11 07:15 upstream 40c18f363a08 48bc529a .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in path_openat
2023/01/18 18:42 upstream c1649ec55708 42660d9e .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in path_openat
2026/08/01 05:37 upstream 0131b508c0e2 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/07/05 06:20 upstream 7404ce516372 fcece630 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/06/28 11:42 upstream 780d569e6c4b fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/05/08 12:19 upstream fcee7d82f27d 5633175a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/04/23 02:39 upstream 2a4c0c11c019 b10da5ec .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2 (clean fs)] ci2-upstream-fs WARNING in path_openat
2026/04/23 01:33 upstream 2a4c0c11c019 b10da5ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/03/07 02:03 upstream 651690480a96 5cb44a80 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in path_openat
2026/02/21 00:01 upstream a95f71ad3e2e 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/02/20 21:14 upstream 8bf22c33e7a1 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2025/12/26 15:28 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2025/12/25 17:37 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in path_openat
2025/12/16 14:39 upstream 40fbbd64bba6 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2025/12/07 21:38 upstream 37bb2e7217b0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2025/11/14 03:42 upstream 2ccec5944606 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2024/06/07 19:46 upstream 8a92980606e3 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in path_openat
2024/05/08 19:02 upstream 6d7ddd805123 4cf3f9b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in path_openat
2024/04/28 20:55 upstream 2c8159388952 07b455f9 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in path_openat
2026/07/15 17:51 upstream 58717b2a1365 a4ed0f4f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/07/12 15:39 upstream 44696aa3a489 d78ea535 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/07/06 03:27 upstream f105f3631d51 fcece630 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/07/05 17:44 upstream 7404ce516372 fcece630 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/07/05 10:45 upstream 7404ce516372 fcece630 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/07/03 18:23 upstream d2c9a99135da aa437a8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/06/30 05:11 upstream dc59e4fea9d8 fff8d0a0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/06/11 01:21 upstream 9716c086c8e8 b754d2d8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/05/10 14:22 upstream 1bfaee9d3351 29233ece .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/05/10 10:19 upstream 1bfaee9d3351 29233ece .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/05/06 18:57 upstream 74fe02ce122a 23ad3581 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/05/06 11:12 upstream 74fe02ce122a 23ad3581 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/05/05 00:14 upstream c7e4e4d5f7dc a898ba9c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/04/10 23:30 upstream 7c6c4ed80b87 38c8e246 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/04/02 06:37 upstream 9147566d8016 0cb124d5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/03/30 16:11 upstream 7aaa8047eafd aa4af680 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/03/30 03:46 upstream a3d97d1d3fa6 dcaebc52 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/03/08 00:57 upstream 4ae12d8bd9a8 5cb44a80 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/03/06 08:35 upstream 5ee8dbf54602 31e9c887 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/03/01 05:51 upstream 2f9339c052bd 43249bac .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/02/09 14:23 upstream 05f7e89ab973 df949cd9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/01/23 14:09 upstream c072629f05d7 319d7797 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/01/17 20:46 upstream 54e82e93ca93 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/01/16 15:48 upstream 54e82e93ca93 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/01/16 14:04 upstream 54e82e93ca93 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2026/01/10 10:24 upstream 54e82e93ca93 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/12/27 18:48 upstream c53f467229a7 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/12/21 17:54 upstream 9094662f6707 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/12/20 18:31 upstream dd9b004b7ff3 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/12/15 03:33 upstream 8f0b4cce4481 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/12/05 12:21 upstream 2061f18ad76e d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/11/23 16:35 upstream d13f3ac64efb 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2025/11/03 17:52 upstream 6146a0f1dfae e6c64ba8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in path_openat
2024/06/24 12:37 upstream f2661062f16b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in path_openat
2023/02/14 20:53 upstream f6feea56f66d de9aae38 .config console log report info ci-qemu-upstream WARNING in path_openat
2022/11/28 03:08 upstream cf562a45a0d5 f4470a7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in path_openat
2026/03/08 09:41 linux-next a0ae2a256046 5cb44a80 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in path_openat
2025/11/12 23:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 74c964729281 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in path_openat
* Struck through repros no longer work on HEAD.