general protection fault, probably for non-canonical address 0xfbd5a5d5a0000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xdead4ead00000000-0xdead4ead00000007]
CPU: 1 PID: 10963 Comm: syz.0.1322 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:dvb_device_open+0xd9/0x360 drivers/media/dvb-core/dvbdev.c:113
Code: 4c 89 e5 48 c1 ed 03 80 7c 1d 00 00 74 08 4c 89 e7 e8 eb c3 3f fb 4d 8b 2c 24 4d 85 ed 0f 84 08 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c9 c3 3f fb 49 8b 7d 00 e8 90 96 ef
RSP: 0018:ffffc9000343f7f0 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: 1ffff1102971a7c3 R08: ffffffff8cfd242f R09: 1ffffffff19fa485
R10: dffffc0000000000 R11: fffffbfff19fa486 R12: ffff88814b8d3e18
R13: dead4ead00000000 R14: ffff888029d8c590 R15: ffff88814b8d3e00
FS:  00007fc54664f6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc548422180 CR3: 0000000060076000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 chrdev_open+0x585/0x5f0 fs/char_dev.c:414
 do_dentry_open+0x7f7/0xf90 fs/open.c:826
 do_open fs/namei.c:3616 [inline]
 path_openat+0x2718/0x2fb0 fs/namei.c:3750
 do_filp_open+0x1df/0x400 fs/namei.c:3777
 do_sys_openat2+0x14b/0x500 fs/open.c:1255
 do_sys_open fs/open.c:1271 [inline]
 __do_sys_openat fs/open.c:1287 [inline]
 __se_sys_openat fs/open.c:1282 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1282
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc5483f984e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fc54664eb28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc54664f6c0 RCX: 00007fc5483f984e
RDX: 0000000000000202 RSI: 00007fc54664ec00 RDI: ffffffffffffff9c
RBP: 00007fc54664ec00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fc5486c1218 R14: 00007fc5486c1180 R15: 00007ffe6bdb33f8
 </TASK>
Modules linked in:
---[ end trace 0abbdcfaeef15dd0 ]---
RIP: 0010:dvb_device_open+0xd9/0x360 drivers/media/dvb-core/dvbdev.c:113
Code: 4c 89 e5 48 c1 ed 03 80 7c 1d 00 00 74 08 4c 89 e7 e8 eb c3 3f fb 4d 8b 2c 24 4d 85 ed 0f 84 08 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c9 c3 3f fb 49 8b 7d 00 e8 90 96 ef
RSP: 0018:ffffc9000343f7f0 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: 1ffff1102971a7c3 R08: ffffffff8cfd242f R09: 1ffffffff19fa485
R10: dffffc0000000000 R11: fffffbfff19fa486 R12: ffff88814b8d3e18
R13: dead4ead00000000 R14: ffff888029d8c590 R15: ffff88814b8d3e00
FS:  00007fc54664f6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc548422180 CR3: 0000000060076000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 89 e5             	mov    %r12,%rbp
   3:	48 c1 ed 03          	shr    $0x3,%rbp
   7:	80 7c 1d 00 00       	cmpb   $0x0,0x0(%rbp,%rbx,1)
   c:	74 08                	je     0x16
   e:	4c 89 e7             	mov    %r12,%rdi
  11:	e8 eb c3 3f fb       	call   0xfb3fc401
  16:	4d 8b 2c 24          	mov    (%r12),%r13
  1a:	4d 85 ed             	test   %r13,%r13
  1d:	0f 84 08 01 00 00    	je     0x12b
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ef             	mov    %r13,%rdi
  33:	e8 c9 c3 3f fb       	call   0xfb3fc401
  38:	49 8b 7d 00          	mov    0x0(%r13),%rdi
  3c:	e8                   	.byte 0xe8
  3d:	90                   	nop
  3e:	96                   	xchg   %eax,%esi
  3f:	ef                   	out    %eax,(%dx)