syzbot


WARNING in nilfs_dat_commit_end

Status: upstream: reported C repro on 2023/03/19 13:38
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+f95e0d2bc2dc67bc22bb@syzkaller.appspotmail.com
First crash: 428d, last: 1h05m
Fix commit to backport (bisect log) :
tree: upstream
commit 28a65b49eb53e172d23567005465019658bfdb4d
Author: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Date: Thu Apr 27 01:15:26 2023 +0000

  nilfs2: do not write dirty data after degenerating to read-only

[report pending]
  
Bug presence (2)
Date Name Commit Repro Result
2023/05/10 linux-5.15.y (ToT) 8a7f2a5c5aa1 C [report] WARNING in nilfs_dat_commit_end
2023/05/10 upstream (ToT) ad2fd53a7870 C Didn't crash
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in nilfs_dat_commit_end nilfs C error 267 441d 598d 22/26 fixed on 2023/06/08 14:41
linux-4.19 WARNING in nilfs_dat_commit_end C error 4 446d 598d 0/1 upstream: reported C repro on 2022/09/30 13:59
linux-6.1 WARNING in nilfs_dat_commit_end origin:lts-only C done 1349 1h20m 428d 0/3 upstream: reported C repro on 2023/03/19 21:57
linux-4.14 WARNING in nilfs_dat_commit_end nilfs2 C 6 446d 597d 0/1 upstream: reported C repro on 2022/10/01 18:00
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/09/02 11:18 3h57m fix candidate upstream job log (1)

Sample crash report:
loop0: detected capacity change from 0 to 2048
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3505 at fs/nilfs2/dat.c:193 nilfs_dat_commit_end+0x59c/0x6a0
Modules linked in:
CPU: 1 PID: 3505 Comm: syz-executor393 Not tainted 5.15.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:nilfs_dat_commit_end+0x59c/0x6a0 fs/nilfs2/dat.c:193
Code: 48 89 ee 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 b8 80 03 00 e8 03 a7 5b fe e8 de 12 dc fd e9 d8 fc ff ff e8 f4 a6 5b fe <0f> 0b e9 39 fc ff ff e8 e8 a6 5b fe e8 c3 12 dc fd 43 80 7c 35 00
RSP: 0018:ffffc90002dff170 EFLAGS: 00010293
RAX: ffffffff8324748c RBX: ffff888076ffc1a0 RCX: ffff88807a695940
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000200000002
RBP: 0000000000000003 R08: ffffffff832470be R09: ffffed10046b0e1b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880782e49a0
R13: 1ffff1100f095976 R14: 0000000200000002 R15: ffff88807a6970c8
FS:  0000555555727380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555724750000 CR3: 0000000079100000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_bmap_commit_end_ptr fs/nilfs2/bmap.h:219 [inline]
 nilfs_btree_commit_delete fs/nilfs2/btree.c:1571 [inline]
 nilfs_btree_delete+0xef0/0x11b0 fs/nilfs2/btree.c:1602
 nilfs_bmap_do_delete fs/nilfs2/bmap.c:184 [inline]
 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:272 [inline]
 nilfs_bmap_truncate+0x2fc/0x560 fs/nilfs2/bmap.c:305
 nilfs_truncate_bmap+0x203/0x3c0 fs/nilfs2/inode.c:850
 nilfs_truncate+0x28b/0x500 fs/nilfs2/inode.c:880
 nilfs_setattr+0x216/0x2c0 fs/nilfs2/inode.c:994
 notify_change+0xd4d/0x1000 fs/attr.c:489
 do_truncate+0x21c/0x300 fs/open.c:65
 handle_truncate fs/namei.c:3195 [inline]
 do_open fs/namei.c:3542 [inline]
 path_openat+0x28a0/0x2f20 fs/namei.c:3672
 do_filp_open+0x21c/0x460 fs/namei.c:3699
 do_sys_openat2+0x13b/0x500 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_creat fs/open.c:1301 [inline]
 __se_sys_creat fs/open.c:1295 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1295
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd7252495f9
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:00007ffe2be0bcf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007ffe2be0bed8 RCX: 00007fd7252495f9
RDX: 00007fd7252488f0 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007fd7252bd610 R08: 0000000000000a29 R09: 0000000000000000
R10: 00007ffe2be0bbc0 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe2be0bec8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (1460):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/01 03:23 linux-5.15.y 9e43368a3393 696ea0d2 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2023/03/23 16:08 linux-5.15.y 115472395b0a f94b4a29 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/12 17:50 linux-5.15.y 284087d4f7d5 9026e142 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/02/13 21:26 linux-5.15.y 6139f2a02fe0 e66542d7 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2023/11/05 13:39 linux-5.15.y 12952a23a5da 500bfdc4 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2023/05/15 00:49 linux-5.15.y b0ece631f84a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2023/05/15 00:28 linux-5.15.y b0ece631f84a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/20 23:53 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/20 17:54 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/20 12:20 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/20 02:10 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 23:57 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 22:56 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 20:22 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 20:22 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 19:18 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 17:53 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 16:17 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 01:36 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 00:11 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/18 21:01 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/18 20:26 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/18 16:27 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/18 14:56 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/18 09:00 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/17 22:55 linux-5.15.y 83655231580b a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/17 21:45 linux-5.15.y 83655231580b a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/17 20:23 linux-5.15.y 83655231580b a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/17 02:16 linux-5.15.y 284087d4f7d5 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/17 00:59 linux-5.15.y 284087d4f7d5 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/16 22:22 linux-5.15.y 284087d4f7d5 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/16 06:04 linux-5.15.y 284087d4f7d5 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/16 04:37 linux-5.15.y 284087d4f7d5 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 22:36 linux-5.15.y 284087d4f7d5 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 19:30 linux-5.15.y 284087d4f7d5 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 17:11 linux-5.15.y 284087d4f7d5 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 15:07 linux-5.15.y 284087d4f7d5 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 15:03 linux-5.15.y 284087d4f7d5 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 08:43 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/15 03:24 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/14 23:02 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/14 21:40 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/14 15:30 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/14 12:27 linux-5.15.y 284087d4f7d5 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
2024/05/19 07:09 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/19 06:45 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/19 04:25 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/18 17:57 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/17 18:11 linux-5.15.y 83655231580b a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/16 10:54 linux-5.15.y 284087d4f7d5 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/16 10:49 linux-5.15.y 284087d4f7d5 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2024/05/16 09:48 linux-5.15.y 284087d4f7d5 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_commit_end
2023/03/19 13:38 linux-5.15.y 8020ae3c051d 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_commit_end
* Struck through repros no longer work on HEAD.