syzbot


WARNING in nilfs_dat_prepare_end

Status: auto-obsoleted due to no activity on 2025/03/18 09:47
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+325e6b0a1e7cf9035cc0@syzkaller.appspotmail.com
First crash: 770d, last: 420d
Fix commit to backport (bisect log) :
tree: upstream
commit 5124a0a549857c4b87173280e192eea24dea72ad
Author: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Date: Thu Jan 26 16:41:14 2023 +0000

  nilfs2: replace WARN_ONs for invalid DAT metadata block requests

  
Discussions (1)
Title Replies (including bot) Last reply
[PATCH 5.10/5.15/6.1 0/1] nilfs2: fix WARNING in nilfs_dat_prepare_end() 4 (4) 2024/02/20 14:09
Bug presence (2)
Date Name Commit Repro Result
2024/11/02 upstream (ToT) 11066801dd4b C [report] WARNING in mark_buffer_dirty
2025/03/18 upstream (ToT) 76b6905c11fd C Didn't crash
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in nilfs_dat_prepare_end nilfs2 C error 8 779d 922d 0/1 upstream: reported C repro on 2022/10/09 12:14
linux-6.1 WARNING in nilfs_dat_prepare_end origin:lts-only C done 754 421d 766d 0/3 upstream: reported C repro on 2023/03/13 20:57
upstream WARNING in nilfs_dat_prepare_end nilfs C error 288 774d 927d 22/28 fixed on 2023/06/08 14:41
linux-4.14 WARNING in nilfs_dat_prepare_end nilfs2 C 8 774d 921d 0/1 upstream: reported C repro on 2022/10/10 02:44
Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/03/07 19:37 15m retest repro linux-5.15.y report log
2024/12/27 18:31 22m retest repro linux-5.15.y report log
2024/10/15 19:55 16m retest repro linux-5.15.y OK log
2024/10/15 19:55 17m retest repro linux-5.15.y OK log
2024/10/15 08:26 0m retest repro linux-5.15.y error
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/12/09 04:12 5h13m fix candidate upstream OK (1) job log

Sample crash report:
WARNING: CPU: 1 PID: 11246 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x248/0x2a0
Modules linked in:
CPU: 1 PID: 11246 Comm: syz-executor.2 Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:nilfs_dat_prepare_end+0x248/0x2a0 fs/nilfs2/dat.c:158
Code: 47 5b fe 89 eb 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 27 47 5b fe e8 c2 a0 db fd e9 5a ff ff ff e8 18 47 5b fe <0f> 0b bb fe ff ff ff eb d2 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90004ce71f8 EFLAGS: 00010287
RAX: ffffffff8324e6a8 RBX: 00000000fffffffe RCX: 0000000000040000
RDX: ffffc9000b549000 RSI: 00000000000079ef RDI: 00000000000079f0
RBP: 1ffff9200099ce54 R08: ffffffff8324e621 R09: ffffffff83231760
R10: 0000000000000002 R11: ffff888022865940 R12: ffffc90004ce72a0
R13: ffff88808941ee40 R14: ffffc90004ce72b8 R15: dffffc0000000000
FS:  00007f7e4ee2e6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e12bc3038 CR3: 000000001fcae000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:211 [inline]
 nilfs_direct_delete+0x17b/0x300 fs/nilfs2/direct.c:155
 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+0xc6d/0xf50 fs/attr.c:505
 do_truncate+0x21c/0x300 fs/open.c:65
 handle_truncate fs/namei.c:3271 [inline]
 do_open fs/namei.c:3618 [inline]
 path_openat+0x28a0/0x2f20 fs/namei.c:3748
 do_filp_open+0x21c/0x460 fs/namei.c:3775
 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: 0033:0x7f7e508adda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007f7e4ee2e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f7e509dbf80 RCX: 00007f7e508adda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f7e508fa47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7e509dbf80 R15: 00007ffe92899818
 </TASK>

Crashes (842):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/22 10:50 linux-5.15.y 6139f2a02fe0 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/20 22:31 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/19 20:04 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/19 05:43 linux-5.15.y 6139f2a02fe0 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/15 20:16 linux-5.15.y 6139f2a02fe0 fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/13 01:08 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/12 23:44 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/10 14:23 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/08 02:02 linux-5.15.y 6139f2a02fe0 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/12/17 00:04 linux-5.15.y d0fc081c6241 3222d10c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/09/07 19:34 linux-5.15.y aff03380bda4 72324844 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/05/30 11:06 linux-5.15.y 1fe619a7d252 cf184559 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/05/29 16:56 linux-5.15.y 1fe619a7d252 cf184559 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/05/29 08:57 linux-5.15.y 1fe619a7d252 cf184559 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2023/05/05 08:12 linux-5.15.y 8a7f2a5c5aa1 518a39a6 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in nilfs_dat_prepare_end
2024/02/22 22:05 linux-5.15.y 6139f2a02fe0 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/22 18:05 linux-5.15.y 6139f2a02fe0 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/22 00:09 linux-5.15.y 6139f2a02fe0 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/21 21:12 linux-5.15.y 6139f2a02fe0 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/21 18:15 linux-5.15.y 6139f2a02fe0 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/20 18:18 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/19 18:27 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/19 16:43 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/17 06:49 linux-5.15.y 6139f2a02fe0 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/16 08:04 linux-5.15.y 6139f2a02fe0 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/16 01:05 linux-5.15.y 6139f2a02fe0 fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/15 19:20 linux-5.15.y 6139f2a02fe0 fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/15 16:30 linux-5.15.y 6139f2a02fe0 fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/15 14:19 linux-5.15.y 6139f2a02fe0 fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/15 00:19 linux-5.15.y 6139f2a02fe0 d9b1cdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/14 22:28 linux-5.15.y 6139f2a02fe0 d9b1cdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/14 20:45 linux-5.15.y 6139f2a02fe0 d9b1cdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/14 17:50 linux-5.15.y 6139f2a02fe0 d9b1cdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/14 10:23 linux-5.15.y 6139f2a02fe0 d902085f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/14 05:40 linux-5.15.y 6139f2a02fe0 d902085f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/13 18:09 linux-5.15.y 6139f2a02fe0 e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/13 14:09 linux-5.15.y 6139f2a02fe0 e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/13 09:10 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/11 02:12 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/10 15:51 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/10 06:04 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/09 22:28 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/09 20:34 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/09 11:26 linux-5.15.y 6139f2a02fe0 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/08 21:12 linux-5.15.y 6139f2a02fe0 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/08 19:50 linux-5.15.y 6139f2a02fe0 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/08 18:08 linux-5.15.y 6139f2a02fe0 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/08 16:16 linux-5.15.y 6139f2a02fe0 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2024/02/08 03:42 linux-5.15.y 6139f2a02fe0 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2023/05/10 00:33 linux-5.15.y 8a7f2a5c5aa1 30aa2a7e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2023/05/05 14:26 linux-5.15.y 8a7f2a5c5aa1 518a39a6 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
2023/03/09 23:37 linux-5.15.y d9b4a0c83a2d f08b59ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in nilfs_dat_prepare_end
* Struck through repros no longer work on HEAD.