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kernel BUG in ocfs2_iget

Status: upstream: reported C repro on 2024/08/15 10:47
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+5bdd4953bc58c8fbd6eb@syzkaller.appspotmail.com
First crash: 315d, last: 9h40m
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: kernel BUG in ocfs2_iget (log)
Repro: C syz .config
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly ocfs2 report (Oct 2024) 0 (1) 2024/10/24 08:02
[syzbot] Monthly ocfs2 report (Sep 2024) 0 (1) 2024/09/23 09:03
[syzbot] [ocfs2?] kernel BUG in ocfs2_iget 0 (8) 2024/08/16 09:11
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in ocfs2_iget missing-backport origin:upstream C error 21 3d08h 215d 0/3 upstream: reported C repro on 2024/11/23 23:28
linux-6.1 kernel BUG in ocfs2_iget origin:upstream C error 15 17h59m 209d 0/3 upstream: reported C repro on 2024/11/29 23:27
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2024/08/16 09:11 21m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 error
2024/08/16 08:08 13m lizhi.xu@windriver.com upstream report log
2024/08/16 07:23 20m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 error
2024/08/16 06:54 20m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 error
2024/08/16 06:18 4m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 error
2024/08/16 05:49 16m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 report log
2024/08/16 03:26 14m lizhi.xu@windriver.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d07b43284ab3 report log

Sample crash report:
=======================================================
(syz-executor713,5827,0):ocfs2_read_locked_inode:550 ERROR: bug expression: !!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
(syz-executor713,5827,0):ocfs2_read_locked_inode:550 ERROR: Inode 72: system file state is ambiguous
------------[ cut here ]------------
kernel BUG at fs/ocfs2/inode.c:550!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5827 Comm: syz-executor713 Not tainted 6.16.0-rc3-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ocfs2_read_locked_inode fs/ocfs2/inode.c:547 [inline]
RIP: 0010:ocfs2_iget+0x19a3/0x1a90 fs/ocfs2/inode.c:159
Code: bc 24 60 01 00 00 4c 8b 84 24 a0 01 00 00 4c 89 f7 48 c7 c6 9f ef b5 8d ba 26 02 00 00 48 c7 c1 20 68 ca 8b e8 0e 30 15 00 90 <0f> 0b e8 86 52 24 fe 90 0f 0b e8 7e 52 24 fe 31 f6 65 ff 0d 85 b6
RSP: 0018:ffffc900041eee60 EFLAGS: 00010246
RAX: 542c47e6c1ced200 RBX: ffffc900041eefa0 RCX: 542c47e6c1ced200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900041ef0d0 R08: ffffc900041eea27 R09: 1ffff9200083dd44
R10: dffffc0000000000 R11: fffff5200083dd45 R12: ffff88807235b02c
R13: 1ffff9200083ddd4 R14: ffffc900041eefc0 R15: 1000000000000000
FS:  00005555734d5380(0000) GS:ffff888125c85000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ca5baafdb8 CR3: 0000000034888000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:142 [inline]
 ocfs2_get_system_file_inode+0x37a/0x7d0 fs/ocfs2/sysfile.c:112
 ocfs2_init_local_system_inodes fs/ocfs2/super.c:491 [inline]
 ocfs2_mount_volume fs/ocfs2/super.c:1756 [inline]
 ocfs2_fill_super+0x419d/0x63d0 fs/ocfs2/super.c:1083
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1681
 vfs_get_tree+0x92/0x2b0 fs/super.c:1804
 do_new_mount+0x24a/0xa40 fs/namespace.c:3885
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4410
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f00484ab97a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007fff20f75c68 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff20f75c80 RCX: 00007f00484ab97a
RDX: 0000200000004440 RSI: 0000200000000040 RDI: 00007fff20f75c80
RBP: 0000200000000040 R08: 00007fff20f75cc0 R09: 0000000000004448
R10: 00000000000008c0 R11: 0000000000000282 R12: 0000200000004440
R13: 00007fff20f75cc0 R14: 0000000000000003 R15: 00000000000008c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_read_locked_inode fs/ocfs2/inode.c:547 [inline]
RIP: 0010:ocfs2_iget+0x19a3/0x1a90 fs/ocfs2/inode.c:159
Code: bc 24 60 01 00 00 4c 8b 84 24 a0 01 00 00 4c 89 f7 48 c7 c6 9f ef b5 8d ba 26 02 00 00 48 c7 c1 20 68 ca 8b e8 0e 30 15 00 90 <0f> 0b e8 86 52 24 fe 90 0f 0b e8 7e 52 24 fe 31 f6 65 ff 0d 85 b6
RSP: 0018:ffffc900041eee60 EFLAGS: 00010246
RAX: 542c47e6c1ced200 RBX: ffffc900041eefa0 RCX: 542c47e6c1ced200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900041ef0d0 R08: ffffc900041eea27 R09: 1ffff9200083dd44
R10: dffffc0000000000 R11: fffff5200083dd45 R12: ffff88807235b02c
R13: 1ffff9200083ddd4 R14: ffffc900041eefc0 R15: 1000000000000000
FS:  00005555734d5380(0000) GS:ffff888125c85000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ca5baafdb8 CR3: 0000000034888000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (763):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/23 12:30 upstream 86731a2a651e d6cdfb8a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
2025/03/22 05:56 upstream d07de43e3f05 c6512ef7 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
2025/03/08 17:36 upstream 2a520073e74f 7e3bd60d .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
2024/12/06 17:26 upstream b8f52214c61a 946d28f0 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in ocfs2_iget
2024/11/25 02:56 upstream 9f16d5e6f220 68da6d95 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in ocfs2_iget
2024/11/24 13:36 upstream 9f16d5e6f220 68da6d95 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in ocfs2_iget
2025/05/26 00:29 upstream d0c22de9995b 2d4582d0 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2024/08/15 08:46 upstream d07b43284ab3 e4bacdaf .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2024/08/15 08:27 upstream d07b43284ab3 e4bacdaf .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2024/11/23 13:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68da6d95 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/09 15:21 upstream 19272b37aa4f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in ocfs2_iget
2025/06/26 00:31 upstream 92ca6c498a5e 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/25 14:41 upstream 7595b66ae9de 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/25 04:08 upstream 7595b66ae9de 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/24 12:17 upstream 78f4e737a53e e2f27c35 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/23 01:48 upstream b67ec639010f d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/22 10:24 upstream 739a6c93cc75 d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/21 16:37 upstream 3f75bfff44be d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/21 07:32 upstream 11313e2f7812 d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/21 03:00 upstream 11313e2f7812 d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/20 21:41 upstream 41687a5c6f8b 804b3919 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/20 03:03 upstream 24770983ccfe ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/20 00:09 upstream 24770983ccfe ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/19 16:31 upstream fb4d33ab452e ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/19 01:53 upstream 52da431bf03b ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/18 19:24 upstream 52da431bf03b ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/18 16:46 upstream 52da431bf03b ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/18 06:09 upstream 4663747812d1 e77fae15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/17 06:46 upstream 9afe652958c3 cfebc887 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/16 23:39 upstream e04c78d86a96 d1716036 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/16 06:38 upstream 08215f5486ec 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/15 07:33 upstream 8c6bc74c7f89 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/15 00:00 upstream 4774cfe3543a 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/14 05:08 upstream 18531f4d1c8c 0e8da31f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/13 16:35 upstream 27605c8c0f69 1f72c409 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/13 11:54 upstream 27605c8c0f69 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/13 05:34 upstream 27605c8c0f69 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/12 21:47 upstream 2c4a1f3fe03e 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/12 03:27 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/11 11:58 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/10 16:25 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/10 14:56 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/10 05:01 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/10 03:26 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/06/12 17:37 linux-next 0bb71d301869 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in ocfs2_iget
2025/06/26 15:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/23 07:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/22 06:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/22 00:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/21 23:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/20 08:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/19 21:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/17 17:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d 417d98fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/15 22:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/15 17:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/14 22:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 39dfc971e42d 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/06/10 07:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d7fa1af5b33e 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
* Struck through repros no longer work on HEAD.