Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 UID: 0 PID: 6395 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:su3000_i2c_transfer+0x1a9/0xe70 drivers/media/usb/dvb-usb/dw2102.c:740
Code: 4c 89 f8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 20 00 74 08 4c 89 ff e8 31 ea 5e fa 49 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 04 08 00 00 0f b6 1b 48 8b 44 24 30 42
RSP: 0018:ffffc90003367bb0 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000010 RCX: 0000000000000003
RDX: ffffffff87c776c1 RSI: ffffffff8ee9b170 RDI: 0000000000001900
RBP: 0000000000000000 R08: ffff8880253c1e40 R09: 0000000000000002
R10: 0000000000001a00 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff1100607c030 R14: 0000000000000002 R15: ffff8880303e0188
FS:  00007fc3cba196c0(0000) GS:ffff888126216000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc3cabe9d40 CR3: 0000000029be0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __i2c_transfer+0x79a/0x2010 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x1cc/0x2d0 drivers/i2c/i2c-core-base.c:2317
 i2cdev_ioctl_rdwr+0x460/0x740 drivers/i2c/i2c-dev.c:306
 i2cdev_ioctl+0x6a5/0x880 drivers/i2c/i2c-dev.c:467
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe8/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc3cab9c629
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:00007fc3cba19028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc3cae15fa0 RCX: 00007fc3cab9c629
RDX: 00002000000001c0 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007fc3cac32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc3cae16038 R14: 00007fc3cae15fa0 R15: 00007ffe6f585778
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:su3000_i2c_transfer+0x1a9/0xe70 drivers/media/usb/dvb-usb/dw2102.c:740
Code: 4c 89 f8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 20 00 74 08 4c 89 ff e8 31 ea 5e fa 49 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 04 08 00 00 0f b6 1b 48 8b 44 24 30 42
RSP: 0018:ffffc90003367bb0 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000010 RCX: 0000000000000003
RDX: ffffffff87c776c1 RSI: ffffffff8ee9b170 RDI: 0000000000001900
RBP: 0000000000000000 R08: ffff8880253c1e40 R09: 0000000000000002
R10: 0000000000001a00 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff1100607c030 R14: 0000000000000002 R15: ffff8880303e0188
FS:  00007fc3cba196c0(0000) GS:ffff888126116000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8352d30e9c CR3: 0000000029be0000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	4c 89 f8             	mov    %r15,%rax
   3:	48 c1 e8 03          	shr    $0x3,%rax
   7:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
   e:	fc ff df
  11:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  16:	74 08                	je     0x20
  18:	4c 89 ff             	mov    %r15,%rdi
  1b:	e8 31 ea 5e fa       	call   0xfa5eea51
  20:	49 8b 1f             	mov    (%r15),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 04 08 00 00    	jne    0x83b
  37:	0f b6 1b             	movzbl (%rbx),%ebx
  3a:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  3f:	42                   	rex.X