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DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 7842 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 1 PID: 7842 at kernel/locking/mutex.c:582 __mutex_lock+0xb9d/0xce0 kernel/locking/mutex.c:747
Modules linked in:
CPU: 1 PID: 7842 Comm: syz.1.770 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:ffffc90019ecfac0 EFLAGS: 00010246
RAX: 8d5390d7c913c200 RBX: ffff888076baace0 RCX: 0000000000080000
RDX: ffffc9000ce5a000 RSI: 0000000000005bb1 RDI: 0000000000005bb2
RBP: ffffc90019ecfc20 R08: ffff8880b8d28c53 R09: 1ffff110171a518a
R10: dffffc0000000000 R11: ffffed10171a518b R12: 1ffff920033d9f68
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f49ea6d06c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ea1fff8 CR3: 0000000028a34000 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: 0033:0x7f49e979fb19
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:00007f49ea6d0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f49e9a25fa0 RCX: 00007f49e979fb19
RDX: 00002000000001c0 RSI: 0000000040146f2c RDI: 0000000000000004
RBP: 00007f49e9837af8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f49e9a26038 R14: 00007f49e9a25fa0 R15: 00007ffd51c91738
 </TASK>
irq event stamp: 1129
hardirqs last  enabled at (1129): [<ffffffff8aa19503>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (1129): [<ffffffff8aa19503>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
hardirqs last disabled at (1128): [<ffffffff8aa192ca>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (1128): [<ffffffff8aa192ca>] _raw_spin_lock_irq+0x8a/0xf0 kernel/locking/spinlock.c:170
softirqs last  enabled at (0): [<ffffffff8150c8de>] rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
softirqs last  enabled at (0): [<ffffffff8150c8de>] rcu_read_lock include/linux/rcupdate.h:786 [inline]
softirqs last  enabled at (0): [<ffffffff8150c8de>] copy_process+0x98e/0x3da0 kernel/fork.c:2381
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---