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WARNING in kill_block_super

Status: upstream: reported C repro on 2019/04/12 21:39
Subsystems: vfs cramfs hfs efs nilfs2
[Documentation on labels]
Reported-by: syzbot+d099fa583564b205b86d@syzkaller.appspotmail.com
First crash: 2050d, last: 627d
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in kill_block_super fuse C 51 2411d 2429d 5/28 fixed on 2018/05/08 18:30
▶ ▼ Fix bisection attempts (6)
Created Duration User Patch Repo Result
2021/11/16 13:15 20m bisect fix linux-4.14.y OK (0) job log log
2021/10/17 12:52 22m bisect fix linux-4.14.y OK (0) job log log
2021/09/17 12:26 26m bisect fix linux-4.14.y OK (0) job log log
2021/08/18 12:02 22m bisect fix linux-4.14.y OK (0) job log log
2021/07/19 11:33 28m bisect fix linux-4.14.y OK (0) job log log
2021/06/19 11:06 27m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
RDX: 0000000020000380 RSI: 00000000200003c0 RDI: 00007ffc54ccede0
RBP: 00007ffc54ccede0 R08: 00007ffc54ccee20 R09: 0000000000000364
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000005
R13: 000055555658a2c0 R14: 0000000000000000 R15: 00007ffc54ccee20
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8479 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163
Kernel panic - not syncing: kernel: panic_on_warn set ...

CPU: 1 PID: 8479 Comm: syz-executor275 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x21d/0x451 kernel/panic.c:247
 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171
 __warn+0xdf/0x1e0 kernel/panic.c:603
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163
RSP: 0018:ffff888095dc7bb0 EFLAGS: 00010297
RAX: ffff88809947e580 RBX: 0000000000000000 RCX: 1ffff11012bb8f55
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888090742cb0
RBP: ffff888098fd8100 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88809947e580 R12: ffff888090742800
R13: ffffffff891bc830 R14: ffffffff88f46340 R15: dffffc0000000000
 efs_kill_sb+0x38/0x50 fs/efs/super.c:33
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 sget_userns+0x9c4/0xc10 fs/super.c:537
 sget+0xd1/0x110 fs/super.c:572
 mount_bdev+0xcd/0x360 fs/super.c:1107
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fdb6d4f78ca
RSP: 002b:00007ffc54ccedc8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdb6d4f78ca
RDX: 0000000020000380 RSI: 00000000200003c0 RDI: 00007ffc54ccede0
RBP: 00007ffc54ccede0 R08: 00007ffc54ccee20 R09: 0000000000000364
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000005
R13: 000055555658a2c0 R14: 0000000000000000 R15: 00007ffc54ccee20
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (14773):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/28 08:19 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in kill_block_super
2023/01/06 12:54 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in kill_block_super
2022/12/29 00:03 linux-4.14.y c4215ee4771b 44712fbc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in kill_block_super
2022/12/10 03:39 linux-4.14.y 65afe34ac33d 67be1ae7 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in kill_block_super
2022/12/10 03:26 linux-4.14.y 65afe34ac33d 67be1ae7 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in kill_block_super
2022/12/09 12:02 linux-4.14.y 65afe34ac33d 1034e5fa .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/08/12 06:34 linux-4.14.y b641242202ed 21724cb2 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/07/07 05:32 linux-4.14.y ed2e96e11936 bff65f44 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/07/02 22:46 linux-4.14.y ed2e96e11936 1434eec0 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/30 19:25 linux-4.14.y f051383ef03b 1434eec0 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/30 12:46 linux-4.14.y f051383ef03b 1434eec0 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/26 17:42 linux-4.14.y f051383ef03b a371c43c .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/23 23:59 linux-4.14.y 84bae26850e3 912f5df7 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/20 21:02 linux-4.14.y 84bae26850e3 b9406563 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/18 19:45 linux-4.14.y 84bae26850e3 8f633d84 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/06/03 08:08 linux-4.14.y 501eec4f9e13 02dddea8 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/05/30 07:56 linux-4.14.y 501eec4f9e13 a46af346 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/05/28 12:59 linux-4.14.y 501eec4f9e13 a46af346 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/04/18 21:47 linux-4.14.y 74766a973637 8bcc32a6 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2022/04/12 10:37 linux-4.14.y 74766a973637 af01ee7d .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2021/04/21 14:24 linux-4.14.y cf256fbcbe34 95777977 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2021/01/24 09:51 linux-4.14.y 2d2791fce891 52e37319 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2021/01/23 04:43 linux-4.14.y 2762b48e9611 52e37319 .config console log report syz C ci2-linux-4-14 WARNING in kill_block_super
2020/10/31 17:18 linux-4.14.y 2b7915014161 8bc4594f .config console log report syz C ci2-linux-4-14
2020/10/25 10:54 linux-4.14.y 5b7a52cd2eef a1839e81 .config console log report syz C ci2-linux-4-14
2020/10/23 01:17 linux-4.14.y 5b7a52cd2eef 4e740c00 .config console log report syz C ci2-linux-4-14
2020/10/02 09:31 linux-4.14.y cbfa1702aaf6 9602ddf4 .config console log report syz C ci2-linux-4-14
2020/08/24 09:38 linux-4.14.y 6a24ca2506d6 cef5ae68 .config console log report syz C ci2-linux-4-14
2020/08/23 00:47 linux-4.14.y 6a24ca2506d6 1da71ab0 .config console log report syz C ci2-linux-4-14
2020/08/22 22:40 linux-4.14.y 6a24ca2506d6 1da71ab0 .config console log report syz C ci2-linux-4-14
2020/08/22 14:51 linux-4.14.y 6a24ca2506d6 6436ce4b .config console log report syz C ci2-linux-4-14
2020/08/20 10:25 linux-4.14.y 14b58326976d ed282a3a .config console log report syz C ci2-linux-4-14
2020/08/19 05:52 linux-4.14.y 14b58326976d e1c29030 .config console log report syz C ci2-linux-4-14
2020/08/17 11:16 linux-4.14.y 14b58326976d 5ce13532 .config console log report syz C ci2-linux-4-14
2020/08/01 06:43 linux-4.14.y 7f2c5eb458b8 8df85ed9 .config console log report syz C ci2-linux-4-14
2020/07/30 19:07 linux-4.14.y e5a54aa2d312 b0947553 .config console log report syz C ci2-linux-4-14
2020/07/11 08:54 linux-4.14.y b850307b279c 18d18b59 .config console log report syz C ci2-linux-4-14
2020/07/09 23:55 linux-4.14.y b850307b279c edf162e8 .config console log report syz C ci2-linux-4-14
2020/07/06 23:42 linux-4.14.y b850307b279c ef278c73 .config console log report syz C ci2-linux-4-14
2020/07/04 10:49 linux-4.14.y b850307b279c 51095195 .config console log report syz C ci2-linux-4-14
2020/06/08 14:04 linux-4.14.y c6db52a88798 7604bb03 .config console log report syz C ci2-linux-4-14
2019/04/21 09:30 linux-4.14.y 68d7a45eec10 b0e8efcb .config console log report syz C ci2-linux-4-14
2023/03/06 11:49 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/05 05:10 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/04 02:02 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/03 20:49 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/03 11:51 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/02 21:37 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/03/01 23:57 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/28 22:16 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/25 22:59 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/25 15:54 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/21 10:19 linux-4.14.y a8ad60f2af58 f949448d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/20 23:14 linux-4.14.y a8ad60f2af58 2414209c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/19 14:31 linux-4.14.y a8ad60f2af58 bcdf85f8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/17 20:12 linux-4.14.y a8ad60f2af58 cf8c2d39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/12 12:24 linux-4.14.y a8ad60f2af58 93e26d60 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/11 11:13 linux-4.14.y a8ad60f2af58 93e26d60 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/05 19:45 linux-4.14.y 3949d1610004 be607b78 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/03 17:22 linux-4.14.y 3949d1610004 1b2f701a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/03 06:27 linux-4.14.y 3949d1610004 33fc5c09 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/02/02 06:10 linux-4.14.y 3949d1610004 9a6f477c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/31 20:25 linux-4.14.y 3949d1610004 b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/30 07:31 linux-4.14.y 3949d1610004 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/28 23:58 linux-4.14.y 3949d1610004 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/28 15:29 linux-4.14.y 3949d1610004 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/26 05:50 linux-4.14.y 3949d1610004 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/22 10:50 linux-4.14.y 97205fccccdc cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/21 13:38 linux-4.14.y 97205fccccdc cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/20 22:54 linux-4.14.y 97205fccccdc dd15ff29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/13 15:24 linux-4.14.y c4215ee4771b 529798b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/13 12:23 linux-4.14.y c4215ee4771b 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/12 04:03 linux-4.14.y c4215ee4771b 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/11 17:23 linux-4.14.y c4215ee4771b 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/10 03:09 linux-4.14.y c4215ee4771b 48bc529a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2023/01/07 13:36 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/28 15:54 linux-4.14.y c4215ee4771b 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/22 15:25 linux-4.14.y c4215ee4771b 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/21 09:19 linux-4.14.y c4215ee4771b d3e76707 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/20 00:05 linux-4.14.y c4215ee4771b c52b2efb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/14 18:21 linux-4.14.y c4215ee4771b b18f0a64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/12/09 11:50 linux-4.14.y 65afe34ac33d 1034e5fa .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/10/27 15:51 linux-4.14.y 41f36d7859a7 5c716ff6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in kill_block_super
2022/10/20 06:46 linux-4.14.y 9d5c0b3a8e1a b31320fc .config console log report info [disk image] [vmlinux] ci2-linux-4-14 WARNING in kill_block_super
2022/10/18 09:15 linux-4.14.y 9d5c0b3a8e1a 94744d21 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 WARNING in kill_block_super
2022/10/13 22:28 linux-4.14.y 9d5c0b3a8e1a adf90437 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 WARNING in kill_block_super
2021/01/17 13:12 linux-4.14.y f79dc86058bc 813be542 .config console log report info ci2-linux-4-14
2019/04/12 20:38 linux-4.14.y 1ec8f1f0bffe 4f421599 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.