syzbot


WARNING: locking bug in ext4_move_extents

Status: upstream: reported C repro on 2023/06/09 16:42
Bug presence: origin:lts-only
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+b41ace86a3cfc6471c6e@syzkaller.appspotmail.com
First crash: 544d, last: 1d00h
Bug presence (2)
Date Name Commit Repro Result
2023/09/13 linux-5.15.y (ToT) aff03380bda4 C [report] WARNING: locking bug in ext4_move_extents
2023/09/13 upstream (ToT) 3669558bdf35 C Didn't crash
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: locking bug in ext4_move_extents ext4 C done 11990 10h46m 548d 25/28 upstream: reported C repro on 2023/06/05 03:53
linux-6.1 WARNING: locking bug in ext4_move_extents missing-backport origin:upstream C 1210 57m 544d 0/3 upstream: reported C repro on 2023/06/09 11:44
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/11/30 13:11 1h19m fix candidate upstream OK (0) job log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3656 at kernel/locking/lockdep.c:896 look_up_lock_class+0xa0/0x120 kernel/locking/lockdep.c:895
Modules linked in:
CPU: 1 PID: 3656 Comm: syz-executor236 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:look_up_lock_class+0xa0/0x120 kernel/locking/lockdep.c:895
Code: 00 48 85 db 74 4c 4c 39 7b 40 74 05 48 8b 1b eb eb 48 8b 83 b0 00 00 00 49 3b 46 18 74 36 48 c7 c0 c0 6f ab 8f 49 39 06 74 2a <0f> 0b eb 26 e8 f7 d6 e7 f9 48 c7 c7 80 4a 8b 8a 89 de e8 99 d0 fe
RSP: 0018:ffffc90002fd7510 EFLAGS: 00010006
RAX: ffffffff8fab6fc0 RBX: ffffffff8f938f80 RCX: ffff88801fb31dc0
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88806fc55238
RBP: ffffc90002fd7610 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 1ffff920005faeb0 R14: ffff88806fc55238 R15: ffffffff91516c81
FS:  00005555555ba480(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb50e763100 CR3: 0000000022751000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0x100/0x9a0 kernel/locking/lockdep.c:1245
 __lock_acquire+0xd7/0x1ff0 kernel/locking/lockdep.c:4891
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 down_write_nested+0x3b/0x60 kernel/locking/rwsem.c:1667
 ext4_move_extents+0x3a1/0xe80 fs/ext4/move_extent.c:610
 __ext4_ioctl fs/ext4/ioctl.c:990 [inline]
 ext4_ioctl+0x2fcb/0x5b80 fs/ext4/ioctl.c:1276
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb50e6eaae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffda36b2618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb50e6eaae9
RDX: 0000000020000080 RSI: 00000000c028660f RDI: 0000000000000004
RBP: 0000000000000000 R08: 00007ffda36b264c R09: 00007ffda36b264c
R10: 00007ffda36b264c R11: 0000000000000246 R12: 00007ffda36b264c
R13: 0000000000000032 R14: 431bde82d7b634db R15: 00007ffda36b2680
 </TASK>

Crashes (1014):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/12 02:24 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 WARNING: locking bug in ext4_move_extents
2024/05/08 10:32 linux-5.15.y 284087d4f7d5 4cf3f9b3 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/04/23 22:54 linux-5.15.y c52b9710c83d 21339d7b .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/04/19 00:01 linux-5.15.y c52b9710c83d af24b050 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/04/17 10:09 linux-5.15.y fa3df276cd36 18f6e127 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/02/24 06:20 linux-5.15.y 458ce51d0356 8d446f15 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2023/09/12 14:02 linux-5.15.y aff03380bda4 59da8366 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/11 07:01 linux-5.15.y 3c17fc483905 6b856513 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/10 14:18 linux-5.15.y 3c17fc483905 6b856513 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/07/18 06:11 linux-5.15.y f45bea23c39c 0f902625 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/06/22 10:57 linux-5.15.y 4878aadf2d15 edc5149a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/06/10 13:41 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/05/19 08:43 linux-5.15.y 83655231580b c0f1611a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/05/17 09:04 linux-5.15.y 284087d4f7d5 c2e07261 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/05/12 20:08 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: locking bug in ext4_move_extents
2024/05/10 08:24 linux-5.15.y 284087d4f7d5 de979bc2 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/05/06 03:43 linux-5.15.y 284087d4f7d5 610f2a54 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/04/28 09:08 linux-5.15.y b925f60c6ee7 07b455f9 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/04/25 07:25 linux-5.15.y c52b9710c83d 8bdc0f22 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/04/19 05:28 linux-5.15.y c52b9710c83d af24b050 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/04/05 22:24 linux-5.15.y 9465fef4ae35 77230c29 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/03/31 17:28 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/03/30 10:58 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/03/17 06:34 linux-5.15.y b95c01af2113 d615901c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/03/11 19:54 linux-5.15.y 574362648507 6ee49f2e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/02/29 20:01 linux-5.15.y 458ce51d0356 352ab904 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/02/29 13:41 linux-5.15.y 458ce51d0356 352ab904 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/02/15 01:46 linux-5.15.y 6139f2a02fe0 d9b1cdd5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2023/11/02 02:21 linux-5.15.y 12952a23a5da 69904c9f .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2023/06/11 18:49 linux-5.15.y 7349e40704a0 49519f06 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2023/08/16 04:30 linux-5.15.y 24c4de4069cb 39990d51 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2023/07/15 19:26 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2023/06/25 00:33 linux-5.15.y f67653019430 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/12/02 17:50 linux-5.15.y 0a51d2d4527b b499ea68 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/30 09:35 linux-5.15.y 0a51d2d4527b 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/27 21:08 linux-5.15.y 0a51d2d4527b 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/27 06:31 linux-5.15.y 0a51d2d4527b 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/26 12:29 linux-5.15.y 0a51d2d4527b e9a9a9f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/22 15:07 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/22 15:06 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/20 10:27 linux-5.15.y 0a51d2d4527b 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/19 02:45 linux-5.15.y 0a51d2d4527b 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/18 20:10 linux-5.15.y 0a51d2d4527b e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/18 16:06 linux-5.15.y 0a51d2d4527b e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/17 09:52 linux-5.15.y d98fd109f827 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/16 08:16 linux-5.15.y d98fd109f827 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/15 09:15 linux-5.15.y d98fd109f827 f6ede3a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/14 11:14 linux-5.15.y 3c17fc483905 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/13 01:19 linux-5.15.y 3c17fc483905 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/12 05:57 linux-5.15.y 3c17fc483905 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/10 11:39 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/06 20:13 linux-5.15.y 72244eab0dad df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/05 17:10 linux-5.15.y 72244eab0dad da38b4c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/05 15:27 linux-5.15.y 72244eab0dad da38b4c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/04 08:34 linux-5.15.y 72244eab0dad f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/11/01 20:17 linux-5.15.y 72244eab0dad f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/31 05:51 linux-5.15.y 74cdd62cb470 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/31 04:25 linux-5.15.y 74cdd62cb470 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/30 16:14 linux-5.15.y 74cdd62cb470 fb888278 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/29 17:56 linux-5.15.y 74cdd62cb470 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/25 16:55 linux-5.15.y 74cdd62cb470 045e728d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/10/25 05:29 linux-5.15.y 74cdd62cb470 c79b8ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
2024/12/03 22:37 linux-5.15.y 0a51d2d4527b b50eb251 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/27 22:35 linux-5.15.y 0a51d2d4527b 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/26 18:54 linux-5.15.y 0a51d2d4527b e9a9a9f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/26 15:28 linux-5.15.y 0a51d2d4527b e9a9a9f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/23 21:37 linux-5.15.y 0a51d2d4527b 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/20 06:33 linux-5.15.y 0a51d2d4527b 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/17 02:27 linux-5.15.y d98fd109f827 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/15 23:04 linux-5.15.y d98fd109f827 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/15 17:17 linux-5.15.y d98fd109f827 f6ede3a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/14 06:29 linux-5.15.y 3c17fc483905 bb3f8425 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/12 08:40 linux-5.15.y 3c17fc483905 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/10 04:51 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/08 15:25 linux-5.15.y 72244eab0dad 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/08 06:58 linux-5.15.y 72244eab0dad 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/07 02:56 linux-5.15.y 72244eab0dad df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/11/01 10:22 linux-5.15.y 72244eab0dad 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2024/10/29 11:34 linux-5.15.y 74cdd62cb470 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING: locking bug in ext4_move_extents
2023/06/09 16:41 linux-5.15.y 7349e40704a0 9018a337 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING: locking bug in ext4_move_extents
* Struck through repros no longer work on HEAD.