syzbot


WARNING: locking bug in ext4_ioctl

Status: upstream: reported C repro on 2023/06/13 21:15
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+b45970e765c38b634d54@syzkaller.appspotmail.com
First crash: 514d, last: 5d00h
Bug presence (2)
Date Name Commit Repro Result
2023/09/15 linux-6.1.y (ToT) 09045dae0d90 C [report] WARNING: locking bug in ext4_ioctl
2023/09/15 upstream (ToT) 9fdfb15a3dbf 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_ioctl ext4 C done 889 21h43m 523d 0/28 upstream: reported C repro on 2023/06/05 05:19
linux-5.15 WARNING: locking bug in ext4_ioctl origin:upstream C 241 15h56m 518d 0/3 upstream: reported C repro on 2023/06/09 23:48
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/10/03 19:25 1h28m fix candidate upstream OK (0) job log

Sample crash report:
------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.782, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 1 PID: 3770 at kernel/locking/lockdep.c:933 look_up_lock_class+0xc2/0x140 kernel/locking/lockdep.c:930
Modules linked in:
CPU: 1 PID: 3770 Comm: syz-executor315 Not tainted 6.1.53-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:look_up_lock_class+0xc2/0x140 kernel/locking/lockdep.c:930
Code: 8b 16 48 c7 c0 20 f1 35 90 48 39 c2 74 46 f6 05 6b aa d9 03 01 75 3d c6 05 62 aa d9 03 01 48 c7 c7 40 03 ec 8a e8 9e 54 cc f6 <0f> 0b eb 26 e8 15 05 ac f9 48 c7 c7 80 02 ec 8a 89 de e8 50 f8 fd
RSP: 0018:ffffc9000405f5b0 EFLAGS: 00010046
RAX: 41d343a595536300 RBX: ffffffff901e14a0 RCX: ffff888027d0d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000405f6b0 R08: ffffffff81525dfe R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 1ffff9200080bec4 R14: ffff888070471698 R15: ffffffff91e24501
FS:  0000555556163380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6f3b350f8 CR3: 000000007c7c0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0x100/0x990 kernel/locking/lockdep.c:1282
 __lock_acquire+0xd3/0x1f80 kernel/locking/lockdep.c:4927
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
 down_write_nested+0x39/0x60 kernel/locking/rwsem.c:1689
 swap_inode_boot_loader fs/ext4/ioctl.c:426 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1424 [inline]
 ext4_ioctl+0x460f/0x5f60 fs/ext4/ioctl.c:1614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
 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+0x63/0xcd
RIP: 0033:0x7fa6f3abd1e9
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:00007ffe765b0098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fa6f3abd1e9
RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe765b00d0 R09: 00007ffe765b00d0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe765b00bc
R13: 0000000000000042 R14: 431bde82d7b634db R15: 00007ffe765b00f0
 </TASK>

Crashes (217):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/15 11:58 linux-6.1.y 09045dae0d90 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/04/16 14:04 linux-6.1.y cd5d98c0556c 0d592ce4 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/04/01 23:23 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/03/05 12:57 linux-6.1.y a3eb3a74aa8c 5fc53669 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/02/28 02:46 linux-6.1.y 81e1dc2f7001 d367cbe5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/01/30 17:36 linux-6.1.y 883d1a956208 7f400fcb .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/01/27 03:22 linux-6.1.y 883d1a956208 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/01/23 01:08 linux-6.1.y 8fd7f4462453 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2023/06/17 19:10 linux-6.1.y ca87e77a2ef8 f3921d4d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2023/08/07 03:51 linux-6.1.y 52a953d0934b 4ffcc9ef .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/11/04 19:38 linux-6.1.y 7c15117f9468 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/11/01 04:35 linux-6.1.y 7c15117f9468 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/31 06:19 linux-6.1.y 7ec6f9fa3d97 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/31 03:05 linux-6.1.y 7ec6f9fa3d97 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/30 07:12 linux-6.1.y 7ec6f9fa3d97 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/29 09:52 linux-6.1.y 7ec6f9fa3d97 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/29 06:40 linux-6.1.y 7ec6f9fa3d97 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/28 18:08 linux-6.1.y 7ec6f9fa3d97 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/25 19:37 linux-6.1.y 7ec6f9fa3d97 045e728d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/25 00:48 linux-6.1.y 7ec6f9fa3d97 c79b8ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/24 17:17 linux-6.1.y 7ec6f9fa3d97 0d144d1a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/22 16:40 linux-6.1.y 7ec6f9fa3d97 a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/22 05:23 linux-6.1.y 54d90d17e8ce a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/17 09:25 linux-6.1.y aa4cd140bba5 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/14 22:03 linux-6.1.y aa4cd140bba5 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/11 16:04 linux-6.1.y aa4cd140bba5 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/06 15:24 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/04 08:14 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/10/04 03:25 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/25 11:13 linux-6.1.y e526b12bf916 349a68c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/25 09:01 linux-6.1.y e526b12bf916 349a68c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/20 11:15 linux-6.1.y e526b12bf916 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/19 19:46 linux-6.1.y e526b12bf916 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/19 19:15 linux-6.1.y e526b12bf916 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/14 21:45 linux-6.1.y 5f55cad62cc9 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/14 09:40 linux-6.1.y 5f55cad62cc9 c7e35043 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/11 20:52 linux-6.1.y 5ca5b389fddf d94c83d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/08 08:25 linux-6.1.y 5ca5b389fddf 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/06 17:00 linux-6.1.y 699506173494 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/09/03 14:13 linux-6.1.y 311d8503ef9f 326f9c5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/28 14:54 linux-6.1.y ee5e09825b81 ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/27 04:26 linux-6.1.y ee5e09825b81 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/25 03:41 linux-6.1.y ee5e09825b81 d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/12 19:33 linux-6.1.y 36790ef5e00b 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/12 14:10 linux-6.1.y 36790ef5e00b 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/08 06:52 linux-6.1.y 48d525b0e463 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/06 22:39 linux-6.1.y 48d525b0e463 1ef9fe42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/08/05 15:27 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
2024/11/01 08:40 linux-6.1.y 7c15117f9468 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/10/31 18:02 linux-6.1.y 7ec6f9fa3d97 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/10/25 15:08 linux-6.1.y 7ec6f9fa3d97 045e728d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/10/24 10:37 linux-6.1.y 7ec6f9fa3d97 0d144d1a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/10/23 09:35 linux-6.1.y 7ec6f9fa3d97 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/10/07 06:50 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/09/03 23:39 linux-6.1.y 311d8503ef9f 326f9c5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/09/03 00:34 linux-6.1.y 311d8503ef9f 8045124c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2024/08/14 06:32 linux-6.1.y 36790ef5e00b bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: locking bug in ext4_ioctl
2023/06/13 21:14 linux-6.1.y 2f3918bc53fb d2ee9228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: locking bug in ext4_ioctl
* Struck through repros no longer work on HEAD.