------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 9155 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 0 PID: 9155 at kernel/locking/mutex.c:582 __mutex_lock+0xa7e/0xb40 kernel/locking/mutex.c:747
Modules linked in:
CPU: 0 PID: 9155 Comm: syz.5.1554 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xa7e/0xb40 kernel/locking/mutex.c:747
Code: 04 20 84 c0 0f 85 b3 00 00 00 83 3d d3 21 e2 04 00 0f 85 93 f6 ff ff 48 c7 c7 40 07 ac 8a 48 c7 c6 e0 07 ac 8a e8 e2 75 0d f7 <0f> 0b e9 79 f6 ff ff 0f 0b e9 27 f9 ff ff 48 c7 c1 40 91 c6 97 80
RSP: 0018:ffffc9000dac7ac0 EFLAGS: 00010246
RAX: bf779c6a2f7c9c00 RBX: ffff888027fe4ce0 RCX: 0000000000080000
RDX: ffffc90003d39000 RSI: 000000000004e060 RDI: 000000000004e061
RBP: ffffc9000dac7c20 R08: ffffc9000dac7747 R09: 1ffff92001b58ee8
R10: dffffc0000000000 R11: fffff52001b58ee9 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888027fe4000 R15: 0000000000000000
FS:  00007f52d100b6c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9f361eca90 CR3: 0000000059279000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 as102_dvb_dmx_start_feed+0x6c/0x280 drivers/media/usb/as102/as102_drv.c:139
 dmx_ts_feed_start_filtering+0x11c/0x210 drivers/media/dvb-core/dvb_demux.c:747
 dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:656 [inline]
 dvb_dmxdev_filter_start+0x422/0x1060 drivers/media/dvb-core/dmxdev.c:767
 dvb_demux_do_ioctl+0x47e/0x530 drivers/media/dvb-core/dmxdev.c:1078
 dvb_usercopy+0x191/0x2b0 drivers/media/dvb-core/dvbdev.c:1007
 dvb_demux_ioctl+0x25/0x30 drivers/media/dvb-core/dmxdev.c:1187
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f52d01a8f19
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:00007f52d100b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f52d0425fa0 RCX: 00007f52d01a8f19
RDX: 00002000000003c0 RSI: 0000000040146f2c RDI: 0000000000000004
RBP: 00007f52d0237f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f52d0426038 R14: 00007f52d0425fa0 R15: 00007ffd20b87cb8
 </TASK>