IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 80000001350b7067 P4D 80000001350b7067 PUD 1359b0067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP PTI
CPU: 0 PID: 3432 Comm: syz-executor.0 Not tainted 4.19.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffffc90001157948 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff88012e520018 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88012e49c120 RDI: ffff88012e520018
RBP: ffffc90001157a18 R08: 000000000000000a R09: ffff88012e4e2f00
R10: 0000000000000000 R11: ffff88012dae88e8 R12: ffff880134ba6360
R13: 0000000000000000 R14: ffffc90001157a58 R15: ffff88012e49c120
FS:  00007f5ffdc0f6c0(0000) GS:ffff88013ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000012daba000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lookup_slow+0x35/0x50 fs/namei.c:1688
 lookup_one_len_unlocked+0x61/0x70 fs/namei.c:2572
 ovl_lookup_single+0x2e/0x220 fs/overlayfs/namei.c:205
 ovl_lookup_layer+0x108/0x120 fs/overlayfs/namei.c:285
 ovl_lookup+0x347/0xaf0 fs/overlayfs/namei.c:893
 lookup_open+0x227/0x8a0 fs/namei.c:3213
 do_last fs/namei.c:3324 [inline]
 path_openat+0x87a/0xc10 fs/namei.c:3534
 do_filp_open+0x8e/0x100 fs/namei.c:3564
 do_sys_open+0x17d/0x210 fs/open.c:1063
 __do_sys_openat fs/open.c:1090 [inline]
 __se_sys_openat fs/open.c:1084 [inline]
 __x64_sys_openat+0x1b/0x20 fs/open.c:1084
 do_syscall_64+0x69/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f5ffe88eea9
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:00007f5ffdc0f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5ffe9bcf80 RCX: 00007f5ffe88eea9
RDX: 0000000000001200 RSI: 0000000020000340 RDI: 0000000000000003
RBP: 00007f5ffe8db4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f5ffe9bcf80 R15: 00007ffd8902c928
Modules linked in:
CR2: 0000000000000000
---[ end trace ff65a0632ca59ee8 ]---
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffffc90001157948 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff88012e520018 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88012e49c120 RDI: ffff88012e520018
RBP: ffffc90001157a18 R08: 000000000000000a R09: ffff88012e4e2f00
R10: 0000000000000000 R11: ffff88012dae88e8 R12: ffff880134ba6360
R13: 0000000000000000 R14: ffffc90001157a58 R15: ffff88012e49c120
FS:  00007f5ffdc0f6c0(0000) GS:ffff88013ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000012daba000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400