syzbot


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: 472d, last: 1d00h
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] [ocfs2?] kernel BUG in ocfs2_iget 0 (9) 2025/10/22 15:04
[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
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in ocfs2_iget missing-backport origin:upstream -1 C error 30 5d21h 371d 0/3 upstream: reported C repro on 2024/11/23 23:28
linux-6.6 kernel BUG in ocfs2_iget origin:upstream -1 C 1 29d 29d 0/2 upstream: reported C repro on 2025/11/01 03:15
linux-6.1 kernel BUG in ocfs2_iget origin:upstream -1 C error 25 20d 365d 0/3 upstream: reported C repro on 2024/11/29 23:27
Last patch testing requests (8)
Created Duration User Patch Repo Result
2025/10/22 15:04 1h41m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 552c50713f273b494ac6c77052032a49bc9255e2 report log
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:
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
(syz.0.17,6072,0):ocfs2_read_locked_inode:612 ERROR: bug [  116.621852][ T6072] (syz.0.17,6072,0):ocfs2_read_locked_inode:612 ERROR: bug expression: !!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
(syz.0.17,6072,0):ocfs2_read_locked_inode:612 ERROR: Inode 4103: system file state is ambiguous
------------[ cut here ]------------
kernel BUG at fs/ocfs2/inode.c:612!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6072 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:ocfs2_read_locked_inode fs/ocfs2/inode.c:609 [inline]
RIP: 0010:ocfs2_iget+0x19a3/0x1a90 fs/ocfs2/inode.c:157
Code: bc 24 60 01 00 00 4c 8b 84 24 a0 01 00 00 4c 89 f7 48 c7 c6 63 88 f6 8c ba 64 02 00 00 48 c7 c1 80 ca 2a 8b e8 7e 3c 15 00 90 <0f> 0b e8 26 fa 23 fe 90 0f 0b e8 1e fa 23 fe 31 f6 65 ff 0d 25 aa
RSP: 0018:ffffc90003f46bc0 EFLAGS: 00010246
RAX: c2ae6d3c13177300 RBX: ffffc90003f46d00 RCX: c2ae6d3c13177300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003f46e30 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed101710487b R12: ffff888057f9be2c
R13: 1ffff920007e8d80 R14: ffffc90003f46d20 R15: 1000000000000000
FS:  000055556ad96500(0000) GS:ffff888126df9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f308e3fb000 CR3: 00000000352d4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:142 [inline]
 ocfs2_get_system_file_inode+0x356/0x770 fs/ocfs2/sysfile.c:112
 ocfs2_init_global_system_inodes+0x319/0x660 fs/ocfs2/super.c:461
 ocfs2_initialize_super fs/ocfs2/super.c:2196 [inline]
 ocfs2_fill_super+0x447b/0x65f0 fs/ocfs2/super.c:993
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691
 vfs_get_tree+0x92/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3727
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4215
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe0f5ac076a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd07008fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd07009040 RCX: 00007fe0f5ac076a
RDX: 0000200000000000 RSI: 0000200000004480 RDI: 00007ffd07009000
RBP: 0000200000000000 R08: 00007ffd07009040 R09: 0000000000010040
R10: 0000000000010040 R11: 0000000000000246 R12: 0000200000004480
R13: 00007ffd07009000 R14: 0000000000004450 R15: 00002000000009c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_read_locked_inode fs/ocfs2/inode.c:609 [inline]
RIP: 0010:ocfs2_iget+0x19a3/0x1a90 fs/ocfs2/inode.c:157
Code: bc 24 60 01 00 00 4c 8b 84 24 a0 01 00 00 4c 89 f7 48 c7 c6 63 88 f6 8c ba 64 02 00 00 48 c7 c1 80 ca 2a 8b e8 7e 3c 15 00 90 <0f> 0b e8 26 fa 23 fe 90 0f 0b e8 1e fa 23 fe 31 f6 65 ff 0d 25 aa
RSP: 0018:ffffc90003f46bc0 EFLAGS: 00010246
RAX: c2ae6d3c13177300 RBX: ffffc90003f46d00 RCX: c2ae6d3c13177300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003f46e30 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed101710487b R12: ffff888057f9be2c
R13: 1ffff920007e8d80 R14: ffffc90003f46d20 R15: 1000000000000000
FS:  000055556ad96500(0000) GS:ffff888126df9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f308e3f6000 CR3: 00000000352d4000 CR4: 00000000003526f0

Crashes (1419):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/03 16:55 upstream 6146a0f1dfae 2c50b6a9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
2025/10/29 21:33 upstream e53642b87a4f fd2207e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
2025/10/02 10:03 upstream 080ffb4bec4d 267f56c6 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-upstream-fs kernel BUG in ocfs2_iget
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
2025/10/01 21:22 upstream 50c19e20ed2e 3af39644 .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
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
2025/11/24 20:12 upstream ac3fd01e4c1e bf6fe8fe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in ocfs2_iget
2025/11/21 19:39 upstream fd95357fd8c6 c31c1b0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in ocfs2_iget
2025/11/29 07:41 upstream 19eef1d98eed d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/29 01:44 upstream e538109ac71d d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/28 12:46 upstream aa7243aaf194 e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/27 18:52 upstream 765e56e41a5a e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/27 16:40 upstream 765e56e41a5a e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/27 07:31 upstream 4941a17751c9 e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/27 04:18 upstream 4941a17751c9 e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/27 02:25 upstream 4941a17751c9 e8331348 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/26 21:11 upstream 30f09200cc4a c116feb4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/26 04:24 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/26 03:19 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/26 01:53 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/25 23:48 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/25 21:02 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/25 20:02 upstream 8a2bcda5e139 bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/25 07:38 upstream ac3fd01e4c1e bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/25 00:16 upstream ac3fd01e4c1e bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/24 13:36 upstream ac3fd01e4c1e bf6fe8fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/23 13:45 upstream d13f3ac64efb 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/23 12:39 upstream d13f3ac64efb 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/23 11:30 upstream d13f3ac64efb 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/23 03:27 upstream 89edd36fd801 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/22 18:34 upstream 2eba5e05d9bc 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/22 09:13 upstream 2eba5e05d9bc 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/22 02:44 upstream 2eba5e05d9bc 4fb8ef37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/21 22:39 upstream fd95357fd8c6 c31c1b0b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/21 15:14 upstream fd95357fd8c6 c31c1b0b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/21 00:12 upstream 8e621c9a3375 280ea308 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/20 21:23 upstream 8e621c9a3375 2cc4c24a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/20 13:08 upstream 23cb64fb7625 2cc4c24a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/20 06:19 upstream 23cb64fb7625 26ee5237 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/20 01:45 upstream 23cb64fb7625 26ee5237 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/19 01:18 upstream 5bebe8de1926 ef766cd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/18 23:44 upstream 5bebe8de1926 ef766cd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/18 14:03 upstream e7c375b18160 ef766cd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/18 04:59 upstream e7c375b18160 ef766cd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/18 03:48 upstream e7c375b18160 ef766cd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/17 12:15 upstream 6a23ae0a96a6 c1ade9dd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/16 07:49 upstream f824272b6e3f f7988ea4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/15 23:47 upstream f824272b6e3f f7988ea4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/15 13:22 upstream 7a0892d2836e f7988ea4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/15 11:49 upstream 7a0892d2836e f7988ea4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/15 06:16 upstream 7a0892d2836e f7988ea4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/11/14 17:26 upstream 6da43bbeb691 6d98c1c8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_iget
2025/10/26 04:54 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in ocfs2_iget
2025/11/22 23:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 3812f8fa7c83 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/11/17 05:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci db9030a787e3 f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/11/16 16:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci db9030a787e3 f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/11/15 17:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci db9030a787e3 f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_iget
2025/11/15 15:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci db9030a787e3 f7988ea4 .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.