syzbot


WARNING in errseq_set (2)

Status: upstream: reported C repro on 2025/01/10 12:04
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+57f9327d593d301ce2a2@syzkaller.appspotmail.com
First crash: 130d, last: 9d03h
Cause bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ntfs3?] WARNING in errseq_set (2) 0 (2) 2025/05/08 03:20
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in errseq_set ntfs3 33 280d 768d 0/28 auto-obsoleted due to no activity on 2024/11/17 16:16
Last patch testing requests (2)
Created Duration User Patch Repo Result
2025/03/31 18:43 56m retest repro upstream report log
2025/01/20 12:34 21m retest repro upstream report log

Sample crash report:
------------[ cut here ]------------
err = 556
WARNING: CPU: 1 PID: 5826 at lib/errseq.c:75 errseq_set+0xed/0x120 lib/errseq.c:74
Modules linked in:
CPU: 1 UID: 0 PID: 5826 Comm: syz-executor335 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
RIP: 0010:errseq_set+0xed/0x120 lib/errseq.c:74
Code: 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 3a 4a 0e fd eb e9 e8 33 4a 0e fd 90 48 c7 c7 80 b5 c0 8b 89 de e8 84 a6 d2 fc 90 <0f> 0b 90 90 eb ce 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 2f ff ff
RSP: 0018:ffffc900041c73a0 EFLAGS: 00010246
RAX: 5edf3f3cab771a00 RBX: 000000000000022c RCX: ffff888033313c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff8880b8923e93 R09: 1ffff110171247d2
R10: dffffc0000000000 R11: ffffed10171247d3 R12: ffff8880769766d0
R13: dffffc0000000000 R14: ffff888076976c70 R15: ffff888076976768
FS:  00007fd18cfee6c0(0000) GS:ffff8881261fd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd184bffe00 CR3: 0000000077516000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __filemap_set_wb_err+0x22/0x1e0 mm/filemap.c:711
 mapping_set_error include/linux/pagemap.h:244 [inline]
 ntfs_resident_writepage+0x114/0x200 fs/ntfs3/inode.c:886
 write_cache_pages+0x61/0x100 mm/page-writeback.c:2613
 do_writepages+0x3ae/0x7b0 mm/page-writeback.c:2656
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 filemap_write_and_wait_range+0x217/0x310 mm/filemap.c:691
 kiocb_write_and_wait mm/filemap.c:2792 [inline]
 generic_file_read_iter+0x19f/0x510 mm/filemap.c:2866
 copy_splice_read+0x54f/0x9b0 fs/splice.c:363
 do_splice_read fs/splice.c:978 [inline]
 splice_direct_to_actor+0x4d0/0xcc0 fs/splice.c:1083
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7d0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1429 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd18d039e89
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:00007fd18cfee218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fd18d0e16c8 RCX: 00007fd18d039e89
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007fd18d0e16c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe80 R11: 0000000000000246 R12: 00007fd18d0ad820
R13: 0000200000000100 R14: 0000200000000400 R15: 0000200000000080
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/08 03:19 upstream 707df3375124 dbf35fa1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in errseq_set
2025/01/06 11:58 upstream ab75170520d4 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] [mounted in repro #3] [mounted in repro #4] ci-upstream-kasan-gce-root WARNING in errseq_set
2025/05/08 01:09 upstream 707df3375124 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in errseq_set
2025/03/11 14:34 upstream 4d872d51bc9d 16256247 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in errseq_set
2025/04/01 14:21 linux-next 7b7d0894c661 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in errseq_set
2025/02/17 21:34 linux-next 253c82b3a2ce 9be4ace3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in errseq_set
* Struck through repros no longer work on HEAD.