general protection fault, maybe for address 0xffffc9000574b028: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 15756 Comm: syz.3.3185 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:dvb_dmxdev_feed_stop drivers/media/dvb-core/dmxdev.c:492 [inline]
RIP: 0010:dvb_dmxdev_filter_stop+0x1b2/0x750 drivers/media/dvb-core/dmxdev.c:570
Code: 3c 18 00 74 08 4c 89 ef e8 2b 66 d2 fa 4d 8b 6d 00 49 8d 7d 28 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 11 66 d2 fa 4c 89 ef <41> ff 55 28 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 f5
RSP: 0018:ffffc90003ac7c68 EFLAGS: 00010246
RAX: 1ffff92000ae9605 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff870e0b5e RSI: ffffffff8ed147b0 RDI: ffffc9000574b000
RBP: ffffc90005864060 R08: ffff888029798000 R09: 0000000000000002
R10: 0000000000000002 R11: 0000000000000002 R12: ffff88802cb1bb50
R13: ffffc9000574b000 R14: 1ffff92000b0c80c R15: ffffc90005864008
FS:  00007f5feb2576c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f14ff8 CR3: 000000005d023000 CR4: 00000000003526e0
Call Trace:
 <TASK>
 dvb_dmxdev_filter_free drivers/media/dvb-core/dmxdev.c:842 [inline]
 dvb_demux_release+0x9b/0x6b0 drivers/media/dvb-core/dmxdev.c:1248
 __fput+0x221/0x940 fs/file_table.c:418
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305
 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5fea39e2d9
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:00007f5feb257028 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f5fea625fa0 RCX: 00007f5fea39e2d9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000
RBP: 00007f5fea435888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5fea626038 R14: 00007f5fea625fa0 R15: 00007ffccd256158
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dvb_dmxdev_feed_stop drivers/media/dvb-core/dmxdev.c:492 [inline]
RIP: 0010:dvb_dmxdev_filter_stop+0x1b2/0x750 drivers/media/dvb-core/dmxdev.c:570
Code: 3c 18 00 74 08 4c 89 ef e8 2b 66 d2 fa 4d 8b 6d 00 49 8d 7d 28 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 11 66 d2 fa 4c 89 ef <41> ff 55 28 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 f5
RSP: 0018:ffffc90003ac7c68 EFLAGS: 00010246
RAX: 1ffff92000ae9605 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff870e0b5e RSI: ffffffff8ed147b0 RDI: ffffc9000574b000
RBP: ffffc90005864060 R08: ffff888029798000 R09: 0000000000000002
R10: 0000000000000002 R11: 0000000000000002 R12: ffff88802cb1bb50
R13: ffffc9000574b000 R14: 1ffff92000b0c80c R15: ffffc90005864008
FS:  00007f5feb2576c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31d12ff8 CR3: 000000005d023000 CR4: 00000000003526e0
----------------
Code disassembly (best guess):
   0:	3c 18                	cmp    $0x18,%al
   2:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   6:	89 ef                	mov    %ebp,%edi
   8:	e8 2b 66 d2 fa       	call   0xfad26638
   d:	4d 8b 6d 00          	mov    0x0(%r13),%r13
  11:	49 8d 7d 28          	lea    0x28(%r13),%rdi
  15:	48 89 f8             	mov    %rdi,%rax
  18:	48 c1 e8 03          	shr    $0x3,%rax
  1c:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  20:	74 05                	je     0x27
  22:	e8 11 66 d2 fa       	call   0xfad26638
  27:	4c 89 ef             	mov    %r13,%rdi
* 2a:	41 ff 55 28          	call   *0x28(%r13) <-- trapping instruction
  2e:	4c 89 e0             	mov    %r12,%rax
  31:	48 c1 e8 03          	shr    $0x3,%rax
  35:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  39:	74 08                	je     0x43
  3b:	4c 89 e7             	mov    %r12,%rdi
  3e:	e8                   	.byte 0xe8
  3f:	f5                   	cmc