loop0: detected capacity change from 0 to 64
overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000086000006
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000117b4f000
[0000000000000000] pgd=080000011899e003, p4d=080000011899e003, pud=080000010e516003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 UID: 0 PID: 6550 Comm: syz.0.15 Not tainted 6.11.0-rc5-syzkaller-00207-gfb24560f31f9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : __lookup_slow+0x250/0x374 fs/namei.c:1718
sp : ffff80009c967440
x29: ffff80009c967520 x28: 0000000010000000 x27: 1fffe0001c05f949
x26: dfff800000000000 x25: ffff70001392ce8c x24: ffff80009c967480
x23: ffff0000db930018 x22: ffff80009c9675a0 x21: ffff80008a456300
x20: 0000000000000000 x19: ffff0000e02fca48 x18: ffff80009c966f80
x17: 000000000001a060 x16: ffff80008a222e50 x15: 0000000000000001
x14: 1ffff000122ee4da x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800090931160 x4 : 0000000000000001 x3 : ffff800080ba12ac
x2 : 0000000000000000 x1 : ffff0000e02fca48 x0 : ffff0000db930018
Call trace:
 0x0
 lookup_slow fs/namei.c:1735 [inline]
 lookup_one_unlocked+0x144/0x254 fs/namei.c:2898
 ovl_lookup_positive_unlocked fs/overlayfs/namei.c:210 [inline]
 ovl_lookup_single+0x190/0x9d8 fs/overlayfs/namei.c:240
 ovl_lookup_layer+0x368/0x454 fs/overlayfs/namei.c:333
 ovl_lookup+0x9a8/0x1f58 fs/overlayfs/namei.c:1124
 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1633
 do_unlinkat+0x2fc/0x700 fs/namei.c:4474
 __do_sys_unlinkat fs/namei.c:4529 [inline]
 __se_sys_unlinkat fs/namei.c:4522 [inline]
 __arm64_sys_unlinkat+0xc8/0xf8 fs/namei.c:4522
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Code: ???????? ???????? ???????? ???????? (????????) 
---[ end trace 0000000000000000 ]---