divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 32467 Comm: syz-executor4 Not tainted 4.20.0-rc6+ #151
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:valid_cvt_gtf_timings drivers/media/platform/vivid/vivid-vid-cap.c:1643 [inline]
RIP: 0010:vivid_vid_cap_s_dv_timings+0x60e/0x11e0 drivers/media/platform/vivid/vivid-vid-cap.c:1674
Code: c6 84 c9 0f 95 c1 40 84 ce 0f 85 ce 0a 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 b9 0a 00 00 48 8b 43 14 31 d2 <41> f7 f7 48 ba 00 00 00 00 00 fc ff df 4c 8d 7b 40 89 85 64 ff ff
RSP: 0018:ffff888147dbf628 EFLAGS: 00010246
kobject: 'loop0' (000000003f013795): kobject_uevent_env
RAX: 0000000001000000 RBX: ffff8881ce7f8700 RCX: 0000000000000001
kobject: 'loop0' (000000003f013795): fill_kobj_path: path = '/devices/virtual/block/loop0'
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8881ce7f8714
RBP: ffff888147dbf6e8 R08: 0000000000000001 R09: ffffed1039612024
R10: ffffed1039612024 R11: ffff8881cb090123 R12: ffff8881cb090080
R13: 1ffff11028fb7ecc R14: 0000000000000000 R15: 0000000000000000
FS:  00007f918a745700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ccad0 CR3: 00000001c066e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
------------[ cut here ]------------
Call Trace:
downgrading a read lock
WARNING: CPU: 1 PID: 32460 at kernel/locking/lockdep.c:3556 __lock_downgrade kernel/locking/lockdep.c:3556 [inline]
WARNING: CPU: 1 PID: 32460 at kernel/locking/lockdep.c:3556 lock_downgrade+0x4d7/0x900 kernel/locking/lockdep.c:3819
Kernel panic - not syncing: panic_on_warn set ...
 vidioc_s_dv_timings+0xa4/0xc0 drivers/media/platform/vivid/vivid-core.c:323
 v4l_stub_s_dv_timings+0x4f/0x60 drivers/media/v4l2-core/v4l2-ioctl.c:2583
 __video_do_ioctl+0x8b1/0x1050 drivers/media/v4l2-core/v4l2-ioctl.c:2853
 video_usercopy+0x5c1/0x1760 drivers/media/v4l2-core/v4l2-ioctl.c:3035
 video_ioctl2+0x2c/0x33 drivers/media/v4l2-core/v4l2-ioctl.c:3079
 v4l2_ioctl+0x154/0x1b0 drivers/media/v4l2-core/v4l2-dev.c:364
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457679
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f918a744c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457679
RDX: 0000000020000080 RSI: 00000000c0845657 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f918a7456d4
R13: 00000000004c210d R14: 00000000004d3e50 R15: 00000000ffffffff
Modules linked in:
Kernel Offset: disabled
Rebooting in 86400 seconds..