syzbot


WARNING in video_unregister_device

Status: upstream: reported C repro on 2019/12/07 17:35
Reported-by: syzbot+107e71ba620a63af4335@syzkaller.appspotmail.com
First crash: 1096d, last: 886d
Patch testing requests:
Created Duration User Patch Repo Result
2022/09/01 18:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 17:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 14:27 17m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 13:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 12:27 14m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 11:27 14m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 10:27 14m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 09:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 08:27 19m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 07:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 06:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 05:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 04:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 03:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 01:27 19m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/09/01 00:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error
2022/08/31 23:27 15m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error

Sample crash report:
usbvision_radio_close: Final disconnect
------------[ cut here ]------------
sysfs group 'power' not found for kobject 'radio21'
WARNING: CPU: 0 PID: 536 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 536 Comm: v4l_id Not tainted 5.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xf6/0x16e lib/dump_stack.c:118
 panic+0x2aa/0x6e1 kernel/panic.c:231
 __warn.cold+0x20/0x50 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x41/0x80 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563
RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 00 b9 11 86 e8 fc e1 82 ff <0f> 0b eb 98 e8 71 25 d8 ff e9 01 ff ff ff 48 89 df e8 64 25 d8 ff
RSP: 0018:ffff8881d5097c80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff86378840 RCX: 0000000000000000
RDX: ffff8881d4aecb00 RSI: ffffffff8129b4e3 RDI: ffffed103aa12f82
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8881db22f50f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d50b4b58
R13: ffffffff86378de0 R14: 0000000000000000 R15: ffff8881d50b5058
 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:794
 device_del+0x18b/0xd20 drivers/base/core.c:2834
 device_unregister+0x22/0xc0 drivers/base/core.c:2889
 video_unregister_device+0xa2/0xc0 drivers/media/v4l2-core/v4l2-dev.c:1089
 usbvision_unregister_video+0x83/0x120 drivers/staging/media/usbvision/usbvision-video.c:1244
 usbvision_release+0x10d/0x1c0 drivers/staging/media/usbvision/usbvision-video.c:1357
 usbvision_radio_close.cold+0x2b/0x74 drivers/staging/media/usbvision/usbvision-video.c:1130
 v4l2_release+0x2e7/0x390 drivers/media/v4l2-core/v4l2-dev.c:455
 __fput+0x339/0x870 fs/file_table.c:281
 task_work_run+0xdd/0x1a0 kernel/task_work.c:123
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:216 [inline]
 __prepare_exit_to_usermode+0x19e/0x1a0 arch/x86/entry/common.c:246
 do_syscall_64+0x5c/0x90 arch/x86/entry/common.c:368
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7ff7a2e98270
Code: Bad RIP value.
RSP: 002b:00007fff5fd8f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007ff7a2e98270
RDX: 00007fff5fd8f1b0 RSI: 0000000080685600 RDI: 0000000000000003
RBP: 00007ff7a34c8698 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fff5fd8f310 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (291):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-usb 2020/07/03 17:37 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 768a07412843 6e569755 .config log report syz C
ci2-upstream-usb 2020/05/14 17:34 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report syz C
ci2-upstream-usb 2020/05/14 15:13 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report syz C
ci2-upstream-usb 2020/05/14 13:49 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report syz C
ci2-upstream-usb 2020/03/21 06:50 https://github.com/google/kasan.git usb-fuzzer e17994d1e7b1 aa6c6a55 .config log report syz C
ci2-upstream-usb 2020/03/09 12:21 https://github.com/google/kasan.git usb-fuzzer d6ff8147a51c 2e9971bb .config log report syz C
ci2-upstream-usb 2020/02/16 16:21 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 cf914200 .config log report syz C
ci2-upstream-usb 2020/02/09 18:55 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 6ece2ea5 .config log report syz C
ci2-upstream-usb 2020/02/09 18:35 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 6ece2ea5 .config log report syz C
ci2-upstream-usb 2020/02/09 06:24 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report syz C
ci2-upstream-usb 2020/01/27 12:00 https://github.com/google/kasan.git usb-fuzzer cd234325a5f1 dd56146d .config log report syz C
ci2-upstream-usb 2020/01/23 04:06 https://github.com/google/kasan.git usb-fuzzer 4cc301ee04d9 3334d684 .config log report syz C
ci2-upstream-usb 2020/01/22 01:18 https://github.com/google/kasan.git usb-fuzzer 4cc301ee04d9 8eda0b95 .config log report syz C
ci2-upstream-usb 2020/01/21 02:16 https://github.com/google/kasan.git usb-fuzzer 4cc301ee04d9 8eda0b95 .config log report syz C
ci2-upstream-usb 2020/01/08 15:06 https://github.com/google/kasan.git usb-fuzzer ae1794106b94 ddc3e859 .config log report syz C
ci2-upstream-usb 2019/12/07 21:23 https://github.com/google/kasan.git usb-fuzzer 1f22d15c209f 1508f453 .config log report syz C
ci2-upstream-usb 2019/12/07 16:06 https://github.com/google/kasan.git usb-fuzzer 1f22d15c209f 85f26751 .config log report syz C
ci2-upstream-usb 2020/05/15 12:24 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c d7f9fffa .config log report
ci2-upstream-usb 2020/05/15 09:27 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/15 04:42 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/15 00:35 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 22:09 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 20:41 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 19:36 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 16:53 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 14:50 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 12:56 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c 2d572622 .config log report
ci2-upstream-usb 2020/05/14 09:12 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c a885920d .config log report
ci2-upstream-usb 2020/05/14 03:38 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c a885920d .config log report
ci2-upstream-usb 2020/05/14 01:12 https://github.com/google/kasan.git usb-fuzzer 059e7e0ff26c a885920d .config log report
ci2-upstream-usb 2020/04/15 22:56 https://github.com/google/kasan.git usb-fuzzer 0fa84af850a4 3f3c5574 .config log report
ci2-upstream-usb 2020/04/08 23:00 https://github.com/google/kasan.git usb-fuzzer 0fa84af850a4 db9bcd4b .config log report
ci2-upstream-usb 2020/02/13 12:39 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 e6247653 .config log report
ci2-upstream-usb 2020/02/12 21:16 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 84f4fc8a .config log report
ci2-upstream-usb 2020/02/12 07:18 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 a75b198c .config log report
ci2-upstream-usb 2020/02/12 05:47 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 a75b198c .config log report
ci2-upstream-usb 2020/02/12 04:07 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 4d1ab643 .config log report
ci2-upstream-usb 2020/02/11 12:48 https://github.com/google/kasan.git usb-fuzzer 7f0cd6c7c423 084454ae .config log report
ci2-upstream-usb 2020/02/10 17:33 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 18847f55 .config log report
ci2-upstream-usb 2020/02/10 13:56 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 35f5e45e .config log report
ci2-upstream-usb 2020/02/10 06:49 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 35f5e45e .config log report
ci2-upstream-usb 2020/02/10 01:38 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 35f5e45e .config log report
ci2-upstream-usb 2020/02/09 15:39 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 6ece2ea5 .config log report
ci2-upstream-usb 2020/02/09 11:42 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 6ece2ea5 .config log report
ci2-upstream-usb 2020/02/09 04:18 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/09 02:37 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/08 05:42 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/08 03:50 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/08 00:20 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/07 06:36 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/07 01:54 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 06150bf1 .config log report
ci2-upstream-usb 2020/02/06 18:28 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 5be3a391 .config log report
ci2-upstream-usb 2020/02/06 06:03 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 662cf49a .config log report
ci2-upstream-usb 2020/02/05 15:17 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 662cf49a .config log report
ci2-upstream-usb 2020/02/05 12:21 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 93e5e335 .config log report
ci2-upstream-usb 2020/02/05 10:59 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 93e5e335 .config log report
ci2-upstream-usb 2020/02/05 09:14 https://github.com/google/kasan.git usb-fuzzer e5cd56e94edd 93e5e335 .config log report
ci2-upstream-usb 2019/12/07 02:17 https://github.com/google/kasan.git usb-fuzzer 1f22d15c209f 85f26751 .config log report
* Struck through repros no longer work on HEAD.