F2FS-fs (loop4): invalid crc value
F2FS-fs (loop4): Found nat_bits in checkpoint
F2FS-fs (loop4): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8450 at fs/inode.c:389 inc_nlink+0x130/0x168 fs/inode.c:389
Modules linked in:
CPU: 0 PID: 8450 Comm: syz.4.1094 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : inc_nlink+0x130/0x168 fs/inode.c:389
lr : inc_nlink+0x130/0x168 fs/inode.c:389
sp : ffff80001fa974d0
x29: ffff80001fa974d0 x28: dfff800000000000 x27: 0000000000000004
x26: 0000000000000000 x25: dfff800000000000 x24: ffff700003f52eb0
x23: 1fffe0001bd6de49 x22: dfff800000000000 x21: 0000000000004001
x20: ffff0000deb6f200 x19: ffff0000deb6f248 x18: 0000000000000000
x17: 0000000000000002 x16: ffff80000a13ef98 x15: 0000000000006000
x14: 0000000000ff0100 x13: 0000000039387000 x12: 0000000000080000
x11: 000000000001a5c3 x10: ffff8000263e9000 x9 : ffff80000893fa74
x8 : 000000000001a5c4 x7 : 0000000039387000 x6 : 00000000000001b7
x5 : ffff0000deb6a570 x4 : ffff0000deb6a530 x3 : ffff80000a192430
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inc_nlink+0x130/0x168 fs/inode.c:389
 f2fs_i_links_write fs/f2fs/f2fs.h:2888 [inline]
 f2fs_update_parent_metadata+0xa8/0x2c4 fs/f2fs/dir.c:662
 f2fs_add_inline_entry+0x498/0x700 fs/f2fs/inline.c:672
 f2fs_add_dentry fs/f2fs/dir.c:834 [inline]
 f2fs_do_add_link+0x1b8/0x354 fs/f2fs/dir.c:875
 f2fs_add_link fs/f2fs/f2fs.h:3376 [inline]
 f2fs_mkdir+0x284/0x4e8 fs/f2fs/namei.c:716
 vfs_mkdir+0x314/0x4d4 fs/namei.c:4065
 ovl_do_mkdir fs/overlayfs/overlayfs.h:166 [inline]
 ovl_mkdir_real+0x64/0x1b8 fs/overlayfs/dir.c:146
 ovl_create_real+0x158/0x32c fs/overlayfs/dir.c:193
 ovl_create_upper fs/overlayfs/dir.c:334 [inline]
 ovl_create_or_link+0x650/0x1284 fs/overlayfs/dir.c:627
 ovl_create_object+0x190/0x24c fs/overlayfs/dir.c:663
 ovl_mkdir+0x34/0x44 fs/overlayfs/dir.c:683
 vfs_mkdir+0x314/0x4d4 fs/namei.c:4065
 do_mkdirat+0x1bc/0x508 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 313718
hardirqs last  enabled at (313717): [<ffff80000883da00>] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (313718): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (313588): [<ffff800008031f40>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (313586): [<ffff800008031f0c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 372a22302f540c40 ]---