IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
BUG: pagefault on kernel address 0xffffc900023fb000 in non-whitelisted uaccess
BUG: unable to handle kernel paging request at ffffc900023fb000
kobject: 'hwsim4' (0000000093a30332): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices'
PGD 1f615a067 P4D 1f615a067 PUD 1f615b067 PMD 1e17af067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4314 Comm: syz-executor.4 Not tainted 4.20.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83
RSP: 0018:ffff8801d734f800 EFLAGS: 00050202
RAX: fffff5200047ff50 RBX: 000000000000ca80 RCX: 0000000000004a80
RDX: 000000000000ca80 RSI: ffffc900023fb000 RDI: 00000000200080c0
RBP: ffff8801d734f838 R08: 0000000000000000 R09: fffff5200047ff4f
R10: ffffc900023ffa7f R11: 0000000000000000 R12: 00000000200000c0
R13: 0000000000000000 R14: 000000002000cb40 R15: ffffc900023f3000
FS:  00007f54e77986c0(0000) GS:ffff8801f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900023fb000 CR3: 00000001f2822002 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vidioc_g_fmt_vid_overlay+0x38f/0x550
 v4l_g_fmt+0x14e/0x6c0
 __video_do_ioctl+0x730/0x1060
 video_usercopy+0x536/0x1740
 video_ioctl2+0x2c/0x33
 v4l2_ioctl+0x15f/0x1c0
 do_vfs_ioctl+0x106d/0x17c0
 ksys_ioctl+0xad/0xd0
 __x64_sys_ioctl+0x72/0xb0
 do_syscall_64+0x183/0x270
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f54e8417f69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f54e77980c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f54e8545f80 RCX: 00007f54e8417f69
RDX: 00000000200000c0 RSI: 00000000c0d05604 RDI: 0000000000000004
RBP: 00007f54e84644a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f54e8545f80 R15: 00007ffcc5a62bf8
Modules linked in:
CR2: ffffc900023fb000
---[ end trace 98a380d2eb5af424 ]---
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83
RSP: 0018:ffff8801d734f800 EFLAGS: 00050202
RAX: fffff5200047ff50 RBX: 000000000000ca80 RCX: 0000000000004a80
RDX: 000000000000ca80 RSI: ffffc900023fb000 RDI: 00000000200080c0
RBP: ffff8801d734f838 R08: 0000000000000000 R09: fffff5200047ff4f
R10: ffffc900023ffa7f R11: 0000000000000000 R12: 00000000200000c0
R13: 0000000000000000 R14: 000000002000cb40 R15: ffffc900023f3000
FS:  00007f54e77986c0(0000) GS:ffff8801f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900023fb000 CR3: 00000001f2822002 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 d1                	mov    %edx,%ecx
   2:	c1 e9 03             	shr    $0x3,%ecx
   5:	83 e2 07             	and    $0x7,%edx
   8:	f3 48 a5             	rep movsq %ds:(%rsi),%es:(%rdi)
   b:	89 d1                	mov    %edx,%ecx
   d:	f3 a4                	rep movsb %ds:(%rsi),%es:(%rdi)
   f:	31 c0                	xor    %eax,%eax
  11:	0f 01 ca             	clac
  14:	c3                   	ret
  15:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1c:	0f 01 cb             	stac
  1f:	83 fa 40             	cmp    $0x40,%edx
  22:	0f 82 70 ff ff ff    	jb     0xffffff98
  28:	89 d1                	mov    %edx,%ecx
* 2a:	f3 a4                	rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction
  2c:	31 c0                	xor    %eax,%eax
  2e:	0f 01 ca             	clac
  31:	c3                   	ret
  32:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  39:	00 00 00
  3c:	0f 01 cb             	stac
  3f:	83                   	.byte 0x83
