IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
kasan: CONFIG_KASAN_INLINE enabled
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3969 Comm: syz-executor.0 Not tainted 4.19.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:strlen+0x1f/0xa0
Code: ff ff 66 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24
RSP: 0018:ffff8801d774f9c0 EFLAGS: 00010286
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffff8801d77024c0
RDX: 0000000000000000 RSI: ffffffff81d2416c RDI: 0000000000000000
RBP: ffff8801d774f9d8 R08: 0000000000000000 R09: 0000000000000005
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff89f3dfd8 R15: dffffc0000000000
FS:  00007f0451cb26c0(0000) GS:ffff8801f6700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b2394f8e5 CR3: 00000001d82e2005 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 getname_kernel+0x24/0x360
 kern_path+0x1e/0x40
 gfs2_mount_meta+0x7e/0x290
 mount_fs+0xaf/0x325
 vfs_kern_mount.part.0+0xd6/0x570
 do_mount+0x5c6/0x3880
 ksys_mount+0xd3/0x130
 __x64_sys_mount+0xbe/0x150
 do_syscall_64+0x183/0x270
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f0452931f69
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:00007f0451cb20c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0452a5ff80 RCX: 00007f0452931f69
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 0000000000000000
RBP: 00007f045297e4a4 R08: 00000000200000c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0452a5ff80 R15: 00007ffdeccc1688
Modules linked in:
---[ end trace 45a179841269c6af ]---
RIP: 0010:strlen+0x1f/0xa0
Code: ff ff 66 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
kobject: 'hwsim5' (00000000a0be5eb3): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices'
kobject: 'hwsim5' (00000000a0be5eb3): kobject_uevent_env
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
RSP: 0018:ffff8801d774f9c0 EFLAGS: 00010286
kobject: 'hwsim5' (00000000a0be5eb3): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim5'
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffff8801d77024c0
kobject: 'hwsim5' (00000000a0be5eb3): kobject_uevent_env
kobject: 'hwsim5' (00000000a0be5eb3): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim5'
RDX: 0000000000000000 RSI: ffffffff81d2416c RDI: 0000000000000000
RBP: ffff8801d774f9d8 R08: 0000000000000000 R09: 0000000000000005
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff89f3dfd8 R15: dffffc0000000000
kobject: 'ieee80211' (0000000042216a13): kobject_add_internal: parent: 'hwsim5', set: '(null)'
FS:  00007f0451cb26c0(0000) GS:ffff8801f6600000(0000) knlGS:0000000000000000
kobject: 'phy5' (00000000eb711fb1): kobject_add_internal: parent: 'ieee80211', set: 'devices'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'phy5' (00000000eb711fb1): kobject_uevent_env
CR2: 00007ff5ae201440 CR3: 00000001d82e2005 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'phy5' (00000000eb711fb1): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim5/ieee80211/phy5'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'rfkill15' (0000000023588187): kobject_add_internal: parent: 'phy5', set: 'devices'
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
   7:	00 00
   9:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  10:	fc ff df
  13:	55                   	push   %rbp
  14:	48 89 fa             	mov    %rdi,%rdx
  17:	48 89 e5             	mov    %rsp,%rbp
  1a:	48 c1 ea 03          	shr    $0x3,%rdx
  1e:	41 54                	push   %r12
  20:	49 89 fc             	mov    %rdi,%r12
  23:	53                   	push   %rbx
  24:	48 83 ec 08          	sub    $0x8,%rsp
* 28:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2c:	48 89 fa             	mov    %rdi,%rdx
  2f:	83 e2 07             	and    $0x7,%edx
  32:	38 d0                	cmp    %dl,%al
  34:	7f 04                	jg     0x3a
  36:	84 c0                	test   %al,%al
  38:	75 4d                	jne    0x87
  3a:	41                   	rex.B
  3b:	80                   	.byte 0x80
  3c:	3c 24                	cmp    $0x24,%al
