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kernel BUG in ocfs2_reserve_suballoc_bits

Status: upstream: reported C repro on 2024/11/01 20:51
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+fd05de09d1267725aa95@syzkaller.appspotmail.com
First crash: 150d, last: 2d04h
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ocfs2?] kernel BUG in ocfs2_reserve_suballoc_bits 0 (3) 2024/11/20 08:14
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in ocfs2_reserve_suballoc_bits 1 10d 10d 0/3 upstream: reported on 2025/03/17 12:34
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/11/20 08:14 19m dmantipov@yandex.ru patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git bf9aa14fc523d2763fc9a10672a709224e8fcaf4 report log

Sample crash report:
(syz-executor421,5309,0):ocfs2_prepare_inode_for_write:2273 ERROR: status = -30
(syz-executor421,5309,0):ocfs2_file_write_iter:2452 ERROR: status = -30
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:804!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5309 Comm: syz-executor421 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ocfs2_reserve_suballoc_bits+0x479b/0x4eb0 fs/ocfs2/suballoc.c:804
Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 b5 b9 68 fe e9 63 dd ff ff e8 3b 4f 31 08 e8 e6 f2 fe fd 90 <0f> 0b e8 de f2 fe fd 48 c7 c7 20 ad e3 8e 48 8b 74 24 28 48 89 da
RSP: 0018:ffffc9000d0463c0 EFLAGS: 00010293
RAX: ffffffff8395e77a RBX: 00000000ffffffff RCX: ffff88801f0fc880
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc9000d0468b0 R08: ffffffff8395a255 R09: 1ffffffff203a11d
R10: dffffc0000000000 R11: fffffbfff203a11e R12: 1ffff92001a08cf8
R13: ffff888033156700 R14: ffff8880405a7e00 R15: dffffc0000000000
FS:  0000555588c64380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056114eea6000 CR3: 000000003a6b6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_reserve_cluster_bitmap_bits+0xc5/0x1d0 fs/ocfs2/suballoc.c:1132
 ocfs2_local_alloc_reserve_for_window fs/ocfs2/localalloc.c:1125 [inline]
 ocfs2_local_alloc_slide_window fs/ocfs2/localalloc.c:1261 [inline]
 ocfs2_reserve_local_alloc_bits+0x95e/0x2870 fs/ocfs2/localalloc.c:669
 ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166
 ocfs2_convert_inline_data_to_extents+0x29d/0x17f0 fs/ocfs2/alloc.c:7078
 ocfs2_try_to_write_inline_data fs/ocfs2/aops.c:1561 [inline]
 ocfs2_write_begin_nolock+0x1c7b/0x4ec0 fs/ocfs2/aops.c:1668
 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1902
 generic_perform_write+0x344/0x6d0 mm/filemap.c:4054
 ocfs2_file_write_iter+0x17b1/0x1f50 fs/ocfs2/file.c:2467
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f986bf8f1b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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:00007fffaa60abc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000204e RCX: 00007f986bf8f1b9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007f986c00c610 R08: 000000000000000a R09: 00007fffaa60ad98
R10: 00000000fffffa00 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffaa60ad88 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_reserve_suballoc_bits+0x479b/0x4eb0 fs/ocfs2/suballoc.c:804
Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 b5 b9 68 fe e9 63 dd ff ff e8 3b 4f 31 08 e8 e6 f2 fe fd 90 <0f> 0b e8 de f2 fe fd 48 c7 c7 20 ad e3 8e 48 8b 74 24 28 48 89 da
RSP: 0018:ffffc9000d0463c0 EFLAGS: 00010293
RAX: ffffffff8395e77a RBX: 00000000ffffffff RCX: ffff88801f0fc880
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc9000d0468b0 R08: ffffffff8395a255 R09: 1ffffffff203a11d
R10: dffffc0000000000 R11: fffffbfff203a11e R12: 1ffff92001a08cf8
R13: ffff888033156700 R14: ffff8880405a7e00 R15: dffffc0000000000
FS:  0000555588c64380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056114eea6000 CR3: 000000003a6b6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (335):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/06 23:11 upstream 7758b206117d 7b852900 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/26 02:25 upstream 2df0c02dab82 89d30d73 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/26 00:46 upstream 2df0c02dab82 89d30d73 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/25 22:17 upstream 2df0c02dab82 89d30d73 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/23 22:13 upstream 586de92313fc 4e8d3850 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/23 15:30 upstream 183601b78a9b 4e8d3850 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/23 10:13 upstream 183601b78a9b 4e8d3850 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/23 02:01 upstream 183601b78a9b c6512ef7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/22 19:01 upstream 88d324e69ea9 c6512ef7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/21 12:22 upstream b3ee1e460951 62330552 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/20 17:03 upstream a7f2e10ecd8f 62330552 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/19 20:10 upstream 81e4f8d68c66 8d0a2921 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/18 10:42 upstream fc444ada1310 ce3352cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/16 11:09 upstream eb88e6bfbc0a e2826670 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/15 18:27 upstream 3571e8b091f4 e2826670 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/12 15:57 upstream 0fed89a961ea ee70e6db .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/12 06:13 upstream 0b46b049d6ec ee70e6db .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/10 19:30 upstream 80e54e84911a 16256247 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/10 07:25 upstream 80e54e84911a 163f510d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/10 02:18 upstream 1110ce6a1e34 163f510d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/08 03:43 upstream 21e4543a2e2f 7e3bd60d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/07 08:40 upstream f315296c92fd 831e3629 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/05 13:29 upstream 48a5eed9ad58 60f5d8d9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/04 20:18 upstream 99fa936e8e4f c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/04 13:45 upstream 99fa936e8e4f c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/03 07:55 upstream 1973160c90d7 c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/02 21:17 upstream 1973160c90d7 c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/03/02 16:32 upstream ece144f151ac c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/28 19:31 upstream 76544811c850 1e7a43e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/28 04:07 upstream 1e15510b71c9 6a8fcbc4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/27 15:47 upstream dd83757f6e68 6a8fcbc4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/24 12:28 upstream d082ecbc71e9 d34966d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/22 19:56 upstream ff202c5028a1 d34966d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/20 07:43 upstream 87a132e73910 50668798 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/19 17:56 upstream 6537cfb395f3 cbd8edab .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/19 06:25 upstream 6537cfb395f3 9a14138f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/16 07:24 upstream ad1b832bf1cf 40a34ec9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/16 05:58 upstream ad1b832bf1cf 40a34ec9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/15 03:51 upstream 04f41cbf03ec 40a34ec9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/14 13:24 upstream 128c8f96eb86 fe17639f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/13 02:21 upstream 4dc1d1bec898 2afad16e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/12 16:41 upstream 09fbf3d50205 b27c2402 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/12 07:09 upstream 09fbf3d50205 f2baddf5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/12 03:26 upstream 09fbf3d50205 f2baddf5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/11 04:50 upstream febbc555cf0f 43f51a00 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/10 15:04 upstream a64dcfb451e2 43f51a00 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2025/02/10 11:34 upstream a64dcfb451e2 ef44b750 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
2024/10/28 20:41 upstream 819837584309 9efb3cc7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_reserve_suballoc_bits
* Struck through repros no longer work on HEAD.