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kernel BUG in __ocfs2_move_extents_range

Status: upstream: reported C repro on 2025/04/16 02:09
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+f2107d999290b8166267@syzkaller.appspotmail.com
First crash: 220d, last: 12d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ocfs2?] kernel BUG in __ocfs2_move_extents_range 0 (6) 2025/10/24 07:15
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __ocfs2_move_extents_range -1 3 85d 92d 0/3 upstream: reported on 2025/08/18 00:39
linux-5.15 kernel BUG in __ocfs2_move_extents_range -1 1 91d 91d 0/3 upstream: reported on 2025/08/19 09:31
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/10/24 07:15 17m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.12.y report log
2025/10/24 07:15 15m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.1.y report log
2025/10/24 07:11 45m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.10.y report log
2025/10/22 14:00 32m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 552c50713f273b494ac6c77052032a49bc9255e2 OK log
2025/09/15 14:07 22m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log

Sample crash report:
ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1382!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 6733 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ocfs2_block_group_set_bits+0x780/0x8e8 fs/ocfs2/suballoc.c:1382
lr : ocfs2_block_group_set_bits+0x780/0x8e8 fs/ocfs2/suballoc.c:1382
sp : ffff8000a2d771a0
x29: ffff8000a2d77260 x28: ffff0000ef644fb8 x27: ffff0000d95b0000
x26: ffff0000eecd52c0 x25: ffff0000cc6b7000 x24: 1ffff000145aee40
x23: ffff0000cc6b700c x22: dfff800000000000 x21: 0000000000000002
x20: 0000000000000168 x19: 0000000000000000 x18: 1fffe00033776488
x17: ffff800093605000 x16: ffff80008b0365bc x15: 0000000000000001
x14: 0000000000000000 x13: 00000000fffffffc x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c6543d00 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000168 x4 : 0000000000000001 x3 : ffff0000cb6b63a0
x2 : ffff0000cc6b7000 x1 : 0000000000000002 x0 : 0000000000000168
Call trace:
 ocfs2_block_group_set_bits+0x780/0x8e8 fs/ocfs2/suballoc.c:1382 (P)
 ocfs2_move_extent fs/ocfs2/move_extents.c:687 [inline]
 __ocfs2_move_extents_range+0x2104/0x2ad8 fs/ocfs2/move_extents.c:859
 ocfs2_move_extents+0x314/0x7f0 fs/ocfs2/move_extents.c:926
 ocfs2_ioctl_move_extents+0x424/0x5f0 fs/ocfs2/move_extents.c:1052
 ocfs2_ioctl+0x1c4/0x738 fs/ocfs2/ioctl.c:946
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:584
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 17ffffa8 979659c3 d4210000 979659c1 (d4210000) 
---[ end trace 0000000000000000 ]---

Crashes (40):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/11 12:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc ff1712fe .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/08/17 08:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 1804e95e .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro #1 (clean fs)] [mounted in repro #2 (corrupt fs)] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/11/06 03:22 upstream dc77806cf3b4 a6c9c731 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/11/05 20:26 upstream 284922f4c563 a6c9c731 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/11/05 17:43 upstream 284922f4c563 a6c9c731 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/30 23:29 upstream e53642b87a4f 2c50b6a9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/29 02:55 upstream 8eefed8f65cc fd2207e7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/27 18:54 upstream dcb6fa37fd7b fd2207e7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/27 17:32 upstream dcb6fa37fd7b fd2207e7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/27 02:34 upstream dbfc6422a34d c0460fcd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/15 18:09 upstream 1f4a222b0e33 82df6b00 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/13 00:37 upstream 67029a49db6c ff1712fe .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/10/07 18:04 upstream c746c3b51698 7e2882b3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/09/25 18:14 upstream bf40f4b87761 0abd0691 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/09/16 09:09 upstream 46a51f4f5eda e2beed91 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/21 23:43 upstream 32b7144f806e 3e79b825 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/21 04:58 upstream 41cd3fd15263 0b9605c8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/20 19:17 upstream b19a97d57c15 bd178e57 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/20 09:08 upstream b19a97d57c15 79512909 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/20 02:07 upstream b19a97d57c15 79512909 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/19 12:43 upstream be48bcf004f9 523f460e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/18 18:39 upstream c17b750b3ad9 dcc075fb .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/18 08:37 upstream 8d561baae505 dcc075fb .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/17 12:48 upstream 99bade344cfa dcc075fb .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/11 11:00 upstream 8f5ae30d69d7 32a0e5ed .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/08/08 19:31 upstream bec077162bd0 56444e07 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/07/25 20:48 upstream 2942242dde89 fb8f743d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/07/03 05:37 upstream b4911fb0b060 115ceea7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/06/27 07:01 upstream f02769e7f272 803ce19b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/06/26 17:06 upstream ee88bddf7f2f 1ae8177e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/06/21 08:27 upstream 11313e2f7812 d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/06/05 13:34 upstream ec7714e49479 6b6b5f21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/04/25 16:27 upstream 02ddfb981de8 dea5c7e4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/04/20 08:22 upstream 119009db2674 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/04/12 01:56 upstream e618ee89561b 0bd6db41 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in __ocfs2_move_extents_range
2025/09/01 10:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/08/31 08:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/08/17 23:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/08/17 23:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __ocfs2_move_extents_range
2025/06/09 17:12 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_move_extents_range
* Struck through repros no longer work on HEAD.