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: 247d, last: 9d00h
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-executor555,5473,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer!
(syz-executor555,5473,0):ocfs2_write_end_nolock:1942 ERROR: status = -30
(syz-executor555,5473,0):ocfs2_commit_trans:382 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: 5473 Comm: syz-executor555 Not tainted 6.15.0-rc1-syzkaller #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+0x18c1/0x18d0 fs/ocfs2/aops.c:2252
Code: 23 8f 4c 89 f2 e8 ff b9 7f 01 e9 38 f6 ff ff e8 45 6d 6f 08 e8 60 41 02 fe 90 0f 0b e8 58 41 02 fe 90 0f 0b e8 50 41 02 fe 90 <0f> 0b e8 48 41 02 fe 90 0f 0b 0f 1f 44 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc9000da3ece0 EFLAGS: 00010293
RAX: ffffffff83c113d0 RBX: 0000000000002000 RCX: ffff888000524880
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 00000000ffffffe2
RBP: ffffc9000da3eed0 R08: ffffffff83c10e6d R09: 1ffffffff20bfbee
R10: dffffc0000000000 R11: fffffbfff20bfbef R12: 1ffff110023a150d
R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff88804451cbd0
FS:  00007fb0138136c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb01389ad10 CR3: 0000000042406000 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+0x1add/0x4540 fs/direct-io.c:1243
 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2438
 generic_file_direct_write+0x1e8/0x400 mm/filemap.c:4036
 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4205
 ocfs2_file_write_iter+0x190f/0x20d0 fs/ocfs2/file.c:2469
 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1158
 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x281/0x3d0 fs/splice.c:1227
 do_sendfile+0x582/0x8c0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1429 [inline]
 __se_sys_sendfile64+0x17e/0x1e0 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb01385ee19
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:00007fb013813218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fb0138ea6c8 RCX: 00007fb01385ee19
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005
RBP: 00007fb0138ea6c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000080000013 R11: 0000000000000246 R12: 00007fb0138b7510
R13: 00002000000001c0 R14: 6f6f6c2f7665642f R15: 0000200000000140
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_dio_wr_get_block+0x18c1/0x18d0 fs/ocfs2/aops.c:2252
Code: 23 8f 4c 89 f2 e8 ff b9 7f 01 e9 38 f6 ff ff e8 45 6d 6f 08 e8 60 41 02 fe 90 0f 0b e8 58 41 02 fe 90 0f 0b e8 50 41 02 fe 90 <0f> 0b e8 48 41 02 fe 90 0f 0b 0f 1f 44 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc9000da3ece0 EFLAGS: 00010293
RAX: ffffffff83c113d0 RBX: 0000000000002000 RCX: ffff888000524880
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 00000000ffffffe2
RBP: ffffc9000da3eed0 R08: ffffffff83c10e6d R09: 1ffffffff20bfbee
R10: dffffc0000000000 R11: fffffbfff20bfbef R12: 1ffff110023a150d
R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff88804451cbd0
FS:  00007fb0138136c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005597594ba008 CR3: 0000000042406000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (218):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2025/05/08 06:05 upstream d76bb1ebb558 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/07 19:41 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/07 17:37 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/07 14:24 upstream 0d8d44db295c 350f4ffc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/07 08:55 upstream 0d8d44db295c 350f4ffc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/05 17:12 upstream 92a09c47464d 6ca47dd8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/05 12:39 upstream 92a09c47464d 6ca47dd8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/04 22:24 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/04 08:56 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/04 03:48 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/04 01:36 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/03 16:51 upstream 95d3481af6dc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/03 06:13 upstream 00b827f0cffa b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/03 02:27 upstream 00b827f0cffa b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/02 23:45 upstream 00b827f0cffa b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/02 20:10 upstream ebd297a2affa d7f099d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/02 10:14 upstream ebd297a2affa d7f099d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/02 04:57 upstream ebd297a2affa 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/01 21:06 upstream 4f79eaa2ceac 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/01 16:08 upstream 4f79eaa2ceac 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/01 08:11 upstream 7a13c14ee59d ce7952f4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/05/01 04:27 upstream 7a13c14ee59d ce7952f4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/30 21:03 upstream b6ea1680d0ac 937aafd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/30 18:20 upstream b6ea1680d0ac 937aafd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/30 15:20 upstream b6ea1680d0ac 937aafd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/30 07:42 upstream 8bac8898fe39 85a5a23f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/30 04:20 upstream 8bac8898fe39 85a5a23f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/29 18:02 upstream ca91b9500108 9e704644 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/29 03:07 upstream f15d97df5afa aeb6ec69 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/29 00:48 upstream f15d97df5afa aeb6ec69 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 23:26 upstream f15d97df5afa aeb6ec69 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 19:25 upstream f15d97df5afa aeb6ec69 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 10:46 upstream b4432656b36e c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 08:42 upstream b4432656b36e c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 05:04 upstream b4432656b36e c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 02:13 upstream b4432656b36e c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/28 00:51 upstream b4432656b36e c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/27 20:16 upstream 5bc1018675ec c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/27 11:09 upstream 5bc1018675ec c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/27 09:08 upstream 5bc1018675ec c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/27 04:29 upstream 5bc1018675ec c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/26 20:21 upstream f1a3944c860b c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/26 16:44 upstream f1a3944c860b c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/26 13:39 upstream f1a3944c860b c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/26 06:26 upstream c3137514f1f1 c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/26 04:53 upstream c3137514f1f1 c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/25 23:08 upstream c3137514f1f1 c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/25 19:26 upstream 02ddfb981de8 dea5c7e4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_dio_wr_get_block
2025/04/25 12:50 upstream 02ddfb981de8 dea5c7e4 .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.