syzbot

 sign-in | mailing list | source | docs
🐞 Open [569] 🐞 Fixed [180] 🐞 Invalid [592] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes

WARNING in kill_block_super

Status: upstream: reported C repro on 2019/04/12 21:39
Reported-by: syzbot+d099fa583564b205b86d@syzkaller.appspotmail.com
First crash: 1219d, last: 1h14m
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in kill_block_super C 51 1580d 1598d 6/23 fixed on 2018/05/08 18:30

Sample crash report:
RBP: 00007ffdd3b03880 R08: 00007ffdd3b038c0 R09: 6f6f6c2f7665642f
R10: 0000000000008002 R11: 0000000000000286 R12: 0000000000000005
R13: 0000000000008002 R14: 00007ffdd3b038c0 R15: 0000000000000000
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8062 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8062 Comm: syz-executor147 Not tainted 4.14.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 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:964
RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163
RSP: 0018:ffff8880b345fbb0 EFLAGS: 00010297
RAX: ffff8880b3370040 RBX: 0000000000000000 RCX: 1ffff1101666e11e
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88809025d7b0
RBP: ffff8880b30fcc00 R08: ffffffff8b9c24e0 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8880b3370040 R12: ffff88809025d300
R13: ffffffff891e3430 R14: ffffffff88f45760 R15: dffffc0000000000
 qnx4_kill_sb+0x38/0x90 fs/qnx4/inode.c:239
 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+0x46/0xbb
RIP: 0033:0x7efc08ab063a
RSP: 002b:00007ffdd3b03878 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efc08ab063a
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffdd3b03880
RBP: 00007ffdd3b03880 R08: 00007ffdd3b038c0 R09: 6f6f6c2f7665642f
R10: 0000000000008002 R11: 0000000000000286 R12: 0000000000000005
R13: 0000000000008002 R14: 00007ffdd3b038c0 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/11/16 13:36 linux-4.14.y 5f9f3b0057d5 95777977 .config log report syz C
ci2-linux-4-14 2021/10/17 13:14 linux-4.14.y f6b016a9d961 95777977 .config log report syz C
ci2-linux-4-14 2021/09/17 12:52 linux-4.14.y f96eb53cbd76 95777977 .config log report syz C
ci2-linux-4-14 2021/08/18 12:25 linux-4.14.y 162b95d01320 95777977 .config log report syz C
ci2-linux-4-14 2021/07/19 12:02 linux-4.14.y 4e68c9b0763f 95777977 .config log report syz C
ci2-linux-4-14 2021/06/19 11:33 linux-4.14.y cfb41ef9deb1 95777977 .config log report syz C
Crashes (14241):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2022/08/12 06:34 linux-4.14.y b641242202ed 21724cb2 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/07/07 05:32 linux-4.14.y ed2e96e11936 bff65f44 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/07/02 22:46 linux-4.14.y ed2e96e11936 1434eec0 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/30 19:25 linux-4.14.y f051383ef03b 1434eec0 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/30 12:46 linux-4.14.y f051383ef03b 1434eec0 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/26 17:42 linux-4.14.y f051383ef03b a371c43c .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/23 23:59 linux-4.14.y 84bae26850e3 912f5df7 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/20 21:02 linux-4.14.y 84bae26850e3 b9406563 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/18 19:45 linux-4.14.y 84bae26850e3 8f633d84 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/06/03 08:08 linux-4.14.y 501eec4f9e13 02dddea8 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/05/30 07:56 linux-4.14.y 501eec4f9e13 a46af346 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/05/28 12:59 linux-4.14.y 501eec4f9e13 a46af346 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/04/18 21:47 linux-4.14.y 74766a973637 8bcc32a6 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2022/04/12 10:37 linux-4.14.y 74766a973637 af01ee7d .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2021/04/21 14:24 linux-4.14.y cf256fbcbe34 95777977 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2021/01/24 09:51 linux-4.14.y 2d2791fce891 52e37319 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2021/01/23 04:43 linux-4.14.y 2762b48e9611 52e37319 .config log report syz C WARNING in kill_block_super
ci2-linux-4-14 2020/10/31 17:18 linux-4.14.y 2b7915014161 8bc4594f .config log report syz C
ci2-linux-4-14 2020/10/25 10:54 linux-4.14.y 5b7a52cd2eef a1839e81 .config log report syz C
ci2-linux-4-14 2020/10/23 01:17 linux-4.14.y 5b7a52cd2eef 4e740c00 .config log report syz C
ci2-linux-4-14 2020/10/02 09:31 linux-4.14.y cbfa1702aaf6 9602ddf4 .config log report syz C
ci2-linux-4-14 2020/08/24 09:38 linux-4.14.y 6a24ca2506d6 cef5ae68 .config log report syz C
ci2-linux-4-14 2020/08/23 00:47 linux-4.14.y 6a24ca2506d6 1da71ab0 .config log report syz C
ci2-linux-4-14 2020/08/22 22:40 linux-4.14.y 6a24ca2506d6 1da71ab0 .config log report syz C
ci2-linux-4-14 2020/08/22 14:51 linux-4.14.y 6a24ca2506d6 6436ce4b .config log report syz C
ci2-linux-4-14 2020/08/20 10:25 linux-4.14.y 14b58326976d ed282a3a .config log report syz C
ci2-linux-4-14 2020/08/19 05:52 linux-4.14.y 14b58326976d e1c29030 .config log report syz C
ci2-linux-4-14 2020/08/17 11:16 linux-4.14.y 14b58326976d 5ce13532 .config log report syz C
ci2-linux-4-14 2020/08/01 06:43 linux-4.14.y 7f2c5eb458b8 8df85ed9 .config log report syz C
ci2-linux-4-14 2020/07/30 19:07 linux-4.14.y e5a54aa2d312 b0947553 .config log report syz C
ci2-linux-4-14 2020/07/11 08:54 linux-4.14.y b850307b279c 18d18b59 .config log report syz C
ci2-linux-4-14 2020/07/09 23:55 linux-4.14.y b850307b279c edf162e8 .config log report syz C
ci2-linux-4-14 2020/07/06 23:42 linux-4.14.y b850307b279c ef278c73 .config log report syz C
ci2-linux-4-14 2020/07/04 10:49 linux-4.14.y b850307b279c 51095195 .config log report syz C
ci2-linux-4-14 2020/06/08 14:04 linux-4.14.y c6db52a88798 7604bb03 .config log report syz C
ci2-linux-4-14 2020/05/30 18:34 linux-4.14.y 4f68020fef1c 6f3e1c7c .config log report syz C
ci2-linux-4-14 2020/05/21 05:03 linux-4.14.y a41ba30d9df2 4afdfa20 .config log report syz C
ci2-linux-4-14 2020/03/12 19:45 linux-4.14.y 12cd844a39ed d850e9d0 .config log report syz C
ci2-linux-4-14 2020/03/12 09:19 linux-4.14.y 12cd844a39ed d850e9d0 .config log report syz C
ci2-linux-4-14 2020/02/29 23:58 linux-4.14.y 78d697fc93f9 c88c7b75 .config log report syz C
ci2-linux-4-14 2020/02/15 05:45 linux-4.14.y 98db2bf27b9e 5d7b90f1 .config log report syz C
ci2-linux-4-14 2019/04/21 09:30 linux-4.14.y 68d7a45eec10 b0e8efcb .config log report syz C
ci2-linux-4-14 2022/08/14 02:06 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/14 00:46 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 23:22 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 20:49 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 17:51 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 15:38 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 13:22 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 11:27 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 10:13 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 08:37 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 07:27 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 06:56 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/13 03:11 linux-4.14.y b641242202ed 8dfcaa3d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/12 20:55 linux-4.14.y b641242202ed 402cd70d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/12 19:18 linux-4.14.y b641242202ed 402cd70d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/12 17:35 linux-4.14.y b641242202ed 402cd70d .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/12 07:41 linux-4.14.y b641242202ed 21724cb2 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/12 06:28 linux-4.14.y b641242202ed 21724cb2 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/11 19:45 linux-4.14.y b641242202ed 787ed7e0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/11 17:40 linux-4.14.y b641242202ed 787ed7e0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/11 17:13 linux-4.14.y b641242202ed 787ed7e0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/11 08:14 linux-4.14.y b641242202ed a6201f11 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/11 05:49 linux-4.14.y b641242202ed a6201f11 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 20:24 linux-4.14.y b641242202ed aaa9eaa0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 17:12 linux-4.14.y b641242202ed aaa9eaa0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 15:04 linux-4.14.y b641242202ed aaa9eaa0 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 06:59 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 04:43 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 02:52 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/10 01:34 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 23:35 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 22:24 linux-4.14.y b641242202ed c2a623d6 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 13:15 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 11:27 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 09:16 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 06:48 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 03:39 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/09 00:33 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/08 23:31 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/08 21:59 linux-4.14.y b641242202ed da700653 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/08 14:30 linux-4.14.y b641242202ed 88e3a122 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2022/08/08 12:43 linux-4.14.y b641242202ed 88e3a122 .config log report info WARNING in kill_block_super
ci2-linux-4-14 2021/01/17 13:12 linux-4.14.y f79dc86058bc 813be542 .config log report info
ci2-linux-4-14 2019/04/12 20:38 linux-4.14.y 1ec8f1f0bffe 4f421599 .config log report