------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 8882 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 1 PID: 8882 at kernel/locking/mutex.c:582 __mutex_lock+0xb9d/0xce0 kernel/locking/mutex.c:747
Modules linked in:

CPU: 1 PID: 8882 Comm: syz.4.950 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xb9d/0xce0 kernel/locking/mutex.c:747
Code: 04 08 84 c0 0f 85 2f 01 00 00 83 3d dc 7c ed 04 00 0f 85 7c f5 ff ff 48 c7 c7 e0 bb ea 8a 48 c7 c6 80 bc ea 8a e8 d3 f0 b0 f6 <0f> 0b e9 62 f5 ff ff 0f 0b e9 20 f9 ff ff 0f 0b e9 fa f5 ff ff 48
RSP: 0018:ffffc9000ca6fac0 EFLAGS: 00010246
RAX: 66bf940fd9032f00 RBX: ffff888050a1ece0 RCX: 0000000000080000
RDX: ffffc90004eb9000 RSI: 0000000000002d5b RDI: 0000000000002d5c
RBP: ffffc9000ca6fc20 R08: ffff8880b8d28c53 R09: 1ffff110171a518a
R10: dffffc0000000000 R11: ffffed10171a518b R12: 1ffff9200194df68
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f331da3e6c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32a24218 CR3: 0000000075603000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 as102_dvb_dmx_start_feed+0x70/0x280 drivers/media/usb/as102/as102_drv.c:139
 dmx_ts_feed_start_filtering+0x120/0x220 drivers/media/dvb-core/dvb_demux.c:747
 dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:656 [inline]
 dvb_dmxdev_filter_start+0x422/0x10a0 drivers/media/dvb-core/dmxdev.c:767
 dvb_demux_do_ioctl+0x482/0x530 drivers/media/dvb-core/dmxdev.c:1078
 dvb_usercopy+0x195/0x2b0 drivers/media/dvb-core/dvbdev.c:999
 dvb_demux_ioctl+0x29/0x30 drivers/media/dvb-core/dmxdev.c:1187
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f331cb9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f331da3e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f331ce25fa0 RCX: 00007f331cb9f559
RDX: 0000200000000200 RSI: 0000000040146f2c RDI: 0000000000000004
RBP: 00007f331cc36b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f331ce26038 R14: 00007f331ce25fa0 R15: 00007fff0eec1bb8
 </TASK>