syzbot


kernel BUG in ocfs2_dio_wr_get_block

Status: upstream: reported C repro on 2024/09/12 09:36
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+f8b081be889b639423bb@syzkaller.appspotmail.com
First crash: 294d, last: 18h21m
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ocfs2?] kernel BUG in ocfs2_dio_wr_get_block 0 (3) 2025/04/07 01:06

Sample crash report:
(syz-executor106,5326,0):__ocfs2_journal_access:727 ERROR: Error -30 getting 1 access to buffer!
(syz-executor106,5326,0):ocfs2_write_end_nolock:1942 ERROR: status = -30
(syz-executor106,5326,0):ocfs2_commit_trans:404 ERROR: status = -5
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:2252!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5326 Comm: syz-executor106 Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full) 
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_dio_wr_get_block+0x175a/0x1770 fs/ocfs2/aops.c:2252
Code: 89 d7 e8 49 64 8b fe 44 89 fa 4c 8b 7c 24 28 e9 d2 fa ff ff e8 f7 ec 27 fe 90 0f 0b e8 ef ec 27 fe 90 0f 0b e8 e7 ec 27 fe 90 <0f> 0b e8 df ec 27 fe 90 0f 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000d5cee40 EFLAGS: 00010293
RAX: ffffffff83987209 RBX: 00000000ffffffe2 RCX: ffff8880002c2440
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2
RBP: ffffc9000d5cf010 R08: ffffffff8fa108f7 R09: 1ffffffff1f4211e
R10: dffffc0000000000 R11: fffffbfff1f4211f R12: ffff8880471408a8
R13: dffffc0000000000 R14: ffff888047140878 R15: 0000000000001000
FS:  00007f406a1e36c0(0000) GS:ffff88808d252000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f406a26b750 CR3: 0000000043231000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 get_more_blocks fs/direct-io.c:648 [inline]
 do_direct_IO fs/direct-io.c:936 [inline]
 __blockdev_direct_IO+0x16da/0x33d0 fs/direct-io.c:1243
 ocfs2_direct_IO+0x25f/0x2d0 fs/ocfs2/aops.c:2438
 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4046
 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4215
 ocfs2_file_write_iter+0x157a/0x1d10 fs/ocfs2/file.c:2469
 iter_file_splice_write+0x937/0x1000 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x101/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a5/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 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: 0033:0x7f406a22f859
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f406a1e3218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f406a2bc6c8 RCX: 00007f406a22f859
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f406a2bc6c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000800000009 R11: 0000000000000246 R12: 00007f406a288bfc
R13: 00007f406a1f7a05 R14: 0000200000000680 R15: 0000200000000140
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_dio_wr_get_block+0x175a/0x1770 fs/ocfs2/aops.c:2252
Code: 89 d7 e8 49 64 8b fe 44 89 fa 4c 8b 7c 24 28 e9 d2 fa ff ff e8 f7 ec 27 fe 90 0f 0b e8 ef ec 27 fe 90 0f 0b e8 e7 ec 27 fe 90 <0f> 0b e8 df ec 27 fe 90 0f 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000d5cee40 EFLAGS: 00010293
RAX: ffffffff83987209 RBX: 00000000ffffffe2 RCX: ffff8880002c2440
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2
RBP: ffffc9000d5cf010 R08: ffffffff8fa108f7 R09: 1ffffffff1f4211e
R10: dffffc0000000000 R11: fffffbfff1f4211f R12: ffff8880471408a8
R13: dffffc0000000000 R14: ffff888047140878 R15: 0000000000001000
FS:  00007f406a1e36c0(0000) GS:ffff88808d252000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f406a26b750 CR3: 0000000043231000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (288):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/11 19:14 upstream aef17cb3d3c4 98683f8f .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro #1 (clean fs)] [mounted in repro #2 (clean fs)] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/07 01:05 upstream 0af2f6be1b42 1c65791e .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_dio_wr_get_block
2025/02/15 23:06 upstream 7ff71e6d9239 40a34ec9 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro #1 (clean fs)] [mounted in repro #2 (clean fs)] [mounted in repro #3] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/07/02 03:11 upstream 66701750d556 bc80e4f0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/30 02:19 upstream afa9a6f4f574 fc9d8ee5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/29 06:29 upstream dfba48a70cb6 fc9d8ee5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/29 03:18 upstream dfba48a70cb6 fc9d8ee5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/27 12:26 upstream f02769e7f272 803ce19b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/27 02:53 upstream f02769e7f272 803ce19b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/25 23:26 upstream 92ca6c498a5e 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/24 15:33 upstream 78f4e737a53e e2f27c35 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/24 13:43 upstream 78f4e737a53e e2f27c35 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/19 19:06 upstream 24770983ccfe ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/18 16:31 upstream 52da431bf03b ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/16 23:27 upstream e04c78d86a96 d1716036 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/15 04:04 upstream 4774cfe3543a 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/13 02:21 upstream 27605c8c0f69 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/12 13:49 upstream 2c4a1f3fe03e 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 23:46 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 22:04 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 16:58 upstream aef17cb3d3c4 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 13:09 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 03:30 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/11 00:17 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/10 20:58 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/10 10:12 upstream f09079bd04a9 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/10 10:10 upstream f09079bd04a9 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/09 22:46 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/09 21:14 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/09 15:57 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/09 01:42 upstream 939f15e640f1 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/09 00:04 upstream 939f15e640f1 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/05 21:23 upstream ec7714e49479 6b6b5f21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/05 05:36 upstream 1af80d00e1e0 6b6b5f21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/05 02:21 upstream 1af80d00e1e0 6b6b5f21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/06/02 17:37 upstream cd2e103d57e5 aaaaf5ea .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/31 05:40 upstream 8477ab143069 3d2f584d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/30 13:46 upstream f66bc387efbe 3d2f584d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/30 11:35 upstream f66bc387efbe 3d2f584d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/28 19:07 upstream feacb1774bd5 3d2f584d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/27 01:03 upstream ddddf9d64f73 874a1386 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/26 22:02 upstream 0ff41df1cb26 06877188 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/26 15:59 upstream 0ff41df1cb26 06877188 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/26 14:45 upstream 0ff41df1cb26 06877188 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/25 22:02 upstream d0c22de9995b 2d4582d0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/25 12:29 upstream b1427432d3b6 ed351ea7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/25 09:38 upstream b1427432d3b6 ed351ea7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/23 14:33 upstream 94305e83eccb f8cc0c83 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/21 12:29 upstream b36ddb9210e6 b47f9e02 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/20 19:12 upstream a5806cd506af b47f9e02 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/20 16:13 upstream a5806cd506af b47f9e02 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/20 08:02 upstream a5806cd506af b84f0537 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2024/09/11 16:06 upstream 8d8d276ba2fb ede7a22c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
* Struck through repros no longer work on HEAD.