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WARNING in md_ioctl

Status: upstream: reported C repro on 2019/04/16 09:27
Reported-by: syzbot+a900780b9d4ede83ea17@syzkaller.appspotmail.com
First crash: 2046d, last: 640d
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 WARNING in md_ioctl C 1 2397d 2048d 0/3 public: reported C repro on 2019/04/14 08:51
linux-4.19 WARNING in md_ioctl C done 199 1425d 2042d 1/1 fixed on 2021/01/26 16:42
upstream WARNING in md_ioctl raid C done error 684 1436d 2397d 19/28 fixed on 2021/03/10 01:49
▶ ▼ Fix bisection attempts (24)
Created Duration User Patch Repo Result
2023/02/19 18:25 26m bisect fix linux-4.14.y OK (0) job log log
2023/01/20 09:58 29m bisect fix linux-4.14.y OK (0) job log log
2022/10/27 16:54 23m bisect fix linux-4.14.y OK (0) job log log
2022/09/19 16:43 30m bisect fix linux-4.14.y OK (0) job log log
2022/08/20 13:18 24m bisect fix linux-4.14.y OK (0) job log log
2022/07/21 12:52 22m bisect fix linux-4.14.y OK (0) job log log
2022/06/21 12:08 21m bisect fix linux-4.14.y OK (0) job log log
2022/05/22 11:40 21m bisect fix linux-4.14.y OK (0) job log log
2022/04/22 07:55 21m bisect fix linux-4.14.y OK (0) job log log
2022/03/23 07:00 22m bisect fix linux-4.14.y OK (0) job log log
2022/02/21 00:22 29m bisect fix linux-4.14.y OK (0) job log log
2022/01/21 23:55 27m bisect fix linux-4.14.y OK (0) job log log
2021/12/22 23:32 23m bisect fix linux-4.14.y OK (0) job log log
2021/11/22 21:46 21m bisect fix linux-4.14.y OK (0) job log log
2021/10/23 21:20 21m bisect fix linux-4.14.y OK (0) job log log
2021/09/23 01:18 22m bisect fix linux-4.14.y OK (0) job log log
2021/08/23 22:24 27m bisect fix linux-4.14.y OK (0) job log log
2021/07/24 21:55 27m bisect fix linux-4.14.y OK (0) job log log
2021/06/24 21:28 21m bisect fix linux-4.14.y OK (0) job log log
2021/05/25 18:36 23m bisect fix linux-4.14.y OK (0) job log log
2021/04/25 15:47 22m bisect fix linux-4.14.y OK (0) job log log
2021/03/26 08:14 21m bisect fix linux-4.14.y OK (0) job log log
2021/02/24 06:42 22m bisect fix linux-4.14.y OK (0) job log log
2021/01/24 11:35 21m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
md: md1 stopped.
md: md1 stopped.
md: md1 stopped.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8056 at drivers/md/md.c:7190 md_ioctl+0x339f/0x4c50 drivers/md/md.c:7190
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8056 Comm: syz-executor809 Not tainted 4.14.212-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x4b kernel/panic.c:547
 report_bug+0x208/0x249 lib/bug.c:186
 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:md_ioctl+0x339f/0x4c50 drivers/md/md.c:7190
RSP: 0018:ffff888095dbfa48 EFLAGS: 00010297
RAX: ffff8880b170e140 RBX: 1ffff11012bb7f50 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880b01945e8
RBP: ffff8880b01945c0 R08: 0000000000000000 R09: 00000000000403ec
R10: ffff8880b170e9c8 R11: ffff8880b170e140 R12: 0000000000000000
R13: ffff88808e36b680 R14: 0000000000000932 R15: ffff8880b0194788
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x540/0x1830 block/ioctl.c:594
 block_ioctl+0xd9/0x120 fs/block_dev.c:1893
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x447369
RSP: 002b:00007fd0f3d53d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000006dec48 RCX: 0000000000447369
RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000004
RBP: 00000000006dec40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec4c
R13: 0000000020000000 R14: 00000000004af9e0 R15: 0000000000000003
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (448):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/12/13 15:07 linux-4.14.y 3f2ecb86cb90 bca53db9 .config console log report syz C ci2-linux-4-14
2020/08/24 08:20 linux-4.14.y 6a24ca2506d6 cef5ae68 .config console log report syz C ci2-linux-4-14
2020/02/03 14:28 linux-4.14.y 9fa690a2a016 93e5e335 .config console log report syz C ci2-linux-4-14
2019/08/03 11:15 linux-4.14.y 10d6aa565d05 6affd8e8 .config console log report syz C ci2-linux-4-14
2019/07/30 23:01 linux-4.14.y ff33472c282e 7c7ded69 .config console log report syz C ci2-linux-4-14
2019/07/29 23:38 linux-4.14.y ff33472c282e f67095ee .config console log report syz C ci2-linux-4-14
2019/04/24 21:45 linux-4.14.y 68d7a45eec10 8e3c52b1 .config console log report syz C ci2-linux-4-14
2019/04/24 21:25 linux-4.14.y 68d7a45eec10 8e3c52b1 .config console log report syz C ci2-linux-4-14
2019/04/24 02:59 linux-4.14.y 68d7a45eec10 2398edea .config console log report syz C ci2-linux-4-14
2019/04/16 09:36 linux-4.14.y 1ec8f1f0bffe 505ab413 .config console log report syz C ci2-linux-4-14
2019/06/16 13:06 linux-4.14.y a74d0e937a3a 442206d7 .config console log report syz ci2-linux-4-14
2020/12/25 11:35 linux-4.14.y 3f2ecb86cb90 b982b3ea .config console log report info ci2-linux-4-14
2020/12/09 08:26 linux-4.14.y 47cbf4cc32db 99917735 .config console log report info ci2-linux-4-14
2020/12/01 12:16 linux-4.14.y 87335852c5d9 07bfe8a5 .config console log report info ci2-linux-4-14
2020/11/15 02:38 linux-4.14.y 27ce4f2a6817 1bf9a662 .config console log report info ci2-linux-4-14
2020/11/13 23:26 linux-4.14.y 27ce4f2a6817 1bf9a662 .config console log report info ci2-linux-4-14
2020/11/11 00:58 linux-4.14.y 27ce4f2a6817 cca87986 .config console log report info ci2-linux-4-14
2020/11/06 21:14 linux-4.14.y 6b6446efedb2 cba33199 .config console log report info ci2-linux-4-14
2020/10/27 04:50 linux-4.14.y 5b7a52cd2eef 8b3eaf58 .config console log report info ci2-linux-4-14
2020/10/26 09:42 linux-4.14.y 5b7a52cd2eef a7aac492 .config console log report info ci2-linux-4-14
2020/09/26 11:57 linux-4.14.y cbfa1702aaf6 2d5ea0cb .config console log report info ci2-linux-4-14
2020/09/22 06:31 linux-4.14.y cbfa1702aaf6 9e1fa68e .config console log report info ci2-linux-4-14
2020/08/30 01:50 linux-4.14.y d7e78d08fa77 d5a3ae1f .config console log report ci2-linux-4-14
2020/08/26 21:52 linux-4.14.y d7e78d08fa77 318430cb .config console log report ci2-linux-4-14
2020/08/14 09:28 linux-4.14.y 14b58326976d 54ce1ed6 .config console log report ci2-linux-4-14
2020/08/12 23:04 linux-4.14.y 14b58326976d bc15f7db .config console log report ci2-linux-4-14
2020/08/09 06:24 linux-4.14.y 14b58326976d f721e4a0 .config console log report ci2-linux-4-14
2020/07/29 21:58 linux-4.14.y e5a54aa2d312 233283a1 .config console log report ci2-linux-4-14
2020/07/21 02:19 linux-4.14.y b850307b279c d88894e6 .config console log report ci2-linux-4-14
2020/07/14 11:14 linux-4.14.y b850307b279c 6f458026 .config console log report ci2-linux-4-14
2020/07/13 03:14 linux-4.14.y b850307b279c 9ebcc5b1 .config console log report ci2-linux-4-14
2020/07/12 07:49 linux-4.14.y b850307b279c 115e1930 .config console log report ci2-linux-4-14
2020/07/09 06:35 linux-4.14.y b850307b279c 9f9845eb .config console log report ci2-linux-4-14
2020/07/08 19:31 linux-4.14.y b850307b279c 9f9845eb .config console log report ci2-linux-4-14
2020/07/08 13:56 linux-4.14.y b850307b279c 5962a2dc .config console log report ci2-linux-4-14
2020/07/08 07:57 linux-4.14.y b850307b279c 5962a2dc .config console log report ci2-linux-4-14
2020/07/06 09:02 linux-4.14.y b850307b279c ac5a135b .config console log report ci2-linux-4-14
2020/07/06 02:19 linux-4.14.y b850307b279c 22f87567 .config console log report ci2-linux-4-14
2020/07/01 13:18 linux-4.14.y b850307b279c 39acb39d .config console log report ci2-linux-4-14
2020/06/30 15:48 linux-4.14.y b850307b279c 917afeaa .config console log report ci2-linux-4-14
2020/06/27 18:38 linux-4.14.y b850307b279c a2cdad9d .config console log report ci2-linux-4-14
2020/06/27 13:19 linux-4.14.y b850307b279c 032b4239 .config console log report ci2-linux-4-14
2020/06/27 11:14 linux-4.14.y b850307b279c 032b4239 .config console log report ci2-linux-4-14
2020/06/25 19:02 linux-4.14.y b850307b279c adb7d9e6 .config console log report ci2-linux-4-14
2020/06/21 01:00 linux-4.14.y b850307b279c c655ec77 .config console log report ci2-linux-4-14
2020/06/20 11:56 linux-4.14.y b850307b279c c655ec77 .config console log report ci2-linux-4-14
2020/06/19 13:48 linux-4.14.y b850307b279c 123cf502 .config console log report ci2-linux-4-14
2020/06/17 10:59 linux-4.14.y b850307b279c b6c46f43 .config console log report ci2-linux-4-14
2020/06/16 11:23 linux-4.14.y b850307b279c 4ea9d964 .config console log report ci2-linux-4-14
2020/06/16 02:15 linux-4.14.y b850307b279c baca2611 .config console log report ci2-linux-4-14
2020/06/15 21:47 linux-4.14.y b850307b279c baca2611 .config console log report ci2-linux-4-14
2020/06/13 23:32 linux-4.14.y b850307b279c a61674a5 .config console log report ci2-linux-4-14
2020/06/13 11:40 linux-4.14.y b850307b279c dbce178a .config console log report ci2-linux-4-14
2020/06/13 05:11 linux-4.14.y b850307b279c f4724dd3 .config console log report ci2-linux-4-14
2020/06/13 00:44 linux-4.14.y b850307b279c 3036d6fd .config console log report ci2-linux-4-14
2020/06/12 14:08 linux-4.14.y b850307b279c 819b58b0 .config console log report ci2-linux-4-14
2020/06/11 16:12 linux-4.14.y b850307b279c 1beaee21 .config console log report ci2-linux-4-14
2020/06/11 00:36 linux-4.14.y c6db52a88798 3ab7a05a .config console log report ci2-linux-4-14
2019/04/16 08:26 linux-4.14.y 1ec8f1f0bffe 505ab413 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.