F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): Found nat_bits in checkpoint
F2FS-fs (loop3): Start checkpoint disabled!
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000086000005
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=000000011ba6a000
[0000000000000000] pgd=0800000126e8e003, p4d=0800000126e8e003, pud=0000000000000000
Internal error: Oops: 0000000086000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6997 Comm: syz.3.576 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : set_page_dirty+0x23c/0x544 mm/page-writeback.c:2631
sp : ffff800020417170
x29: ffff800020417170 x28: 0000000074342535 x27: dfff800000000000
x26: fffffc0003be20c8 x25: 1fffff80006fcdc9 x24: dfff800000000000
x23: 0000000000000000 x22: 05ffc00000000015 x21: ffff0000e95d8a58
x20: ffff800011d56958 x19: fffffc00037e6e40 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800011b5ae10 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000080000
x11: 000000000007ffff x10: ffff80002625a000 x9 : 0000000000080000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff0000df9ba000 x4 : ffff0000f6b2f000 x3 : ffff0000df9b9f80
x2 : fffffffffffffff0 x1 : 0000000000000000 x0 : fffffc00037e6e40
Call trace:
 0x0
 f2fs_update_meta_page+0xa8/0x1f0 fs/f2fs/segment.c:2470
 do_checkpoint+0x17bc/0x3754 fs/f2fs/checkpoint.c:1544
 f2fs_write_checkpoint+0x10f4/0x1e3c fs/f2fs/checkpoint.c:1700
 f2fs_disable_checkpoint+0x3ac/0x500 fs/f2fs/super.c:2147
 f2fs_fill_super+0x5b14/0x64fc fs/f2fs/super.c:4375
 mount_bdev+0x274/0x370 fs/super.c:1400
 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4506
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x278/0x8fc fs/namespace.c:3012
 path_mount+0x594/0x101c fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: bad PC value
---[ end trace 7928ccafbc022ae5 ]---