R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d585b5fa0 R15: 00007fff49a7f208
 </TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 29311 Comm: syz.0.2385 Tainted: G          I         6.16.0-rc5-syzkaller-00121-gbc9ff192a6c9 #0 PREEMPT(full) 
Tainted: [I]=FIRMWARE_WORKAROUND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:module_is_live include/linux/module.h:619 [inline]
RIP: 0010:try_module_get+0x23/0xd0 kernel/module/main.c:883
Code: 90 90 90 90 90 90 90 f3 0f 1e fa 48 85 ff 0f 84 92 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 89 fb <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 89 00 00 00 83 3b 02 74 71 48
RSP: 0018:ffffc9000215f918 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000dd5f000
RDX: 0000000000000000 RSI: ffffffff87d58fc0 RDI: 0000000000000001
RBP: ffff88802a917a00 R08: 0000000000000001 R09: fffffbfff1f86711
R10: ffffffff8fc3388f R11: 0000000000000001 R12: ffff88807d293880
R13: ffff888029f34d80 R14: ffff88802af23c48 R15: ffff88807d2938c8
FS:  00007f6d592616c0(0000) GS:ffff888124821000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005608bbe9c950 CR3: 0000000032804000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dvb_device_open+0x124/0x3b0 drivers/media/dvb-core/dvbdev.c:103
 chrdev_open+0x234/0x6a0 fs/char_dev.c:414
 do_dentry_open+0x741/0x1c10 fs/open.c:964
 vfs_open+0x82/0x3f0 fs/open.c:1094
 do_open fs/namei.c:3896 [inline]
 path_openat+0x1de4/0x2cb0 fs/namei.c:4055
 do_filp_open+0x20b/0x470 fs/namei.c:4082
 do_sys_openat2+0x11b/0x1d0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0x174/0x210 fs/open.c:1463
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d5838e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d59261038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6d585b5fa0 RCX: 00007f6d5838e929
RDX: 0000000000000001 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f6d58410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d585b5fa0 R15: 00007fff49a7f208
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:module_is_live include/linux/module.h:619 [inline]
RIP: 0010:try_module_get+0x23/0xd0 kernel/module/main.c:883
Code: 90 90 90 90 90 90 90 f3 0f 1e fa 48 85 ff 0f 84 92 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 89 fb <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 89 00 00 00 83 3b 02 74 71 48
RSP: 0018:ffffc9000215f918 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000dd5f000
RDX: 0000000000000000 RSI: ffffffff87d58fc0 RDI: 0000000000000001
RBP: ffff88802a917a00 R08: 0000000000000001 R09: fffffbfff1f86711
R10: ffffffff8fc3388f R11: 0000000000000001 R12: ffff88807d293880
R13: ffff888029f34d80 R14: ffff88802af23c48 R15: ffff88807d2938c8
FS:  00007f6d592616c0(0000) GS:ffff888124821000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b309c0ff8 CR3: 0000000032804000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	f3 0f 1e fa          	endbr64
   b:	48 85 ff             	test   %rdi,%rdi
   e:	0f 84 92 00 00 00    	je     0xa6
  14:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1b:	fc ff df
  1e:	48 89 fa             	mov    %rdi,%rdx
  21:	55                   	push   %rbp
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	53                   	push   %rbx
  27:	48 89 fb             	mov    %rdi,%rbx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 08                	je     0x3a
  32:	3c 03                	cmp    $0x3,%al
  34:	0f 8e 89 00 00 00    	jle    0xc3
  3a:	83 3b 02             	cmpl   $0x2,(%rbx)
  3d:	74 71                	je     0xb0
  3f:	48                   	rex.W