F2FS-fs (loop6): Mounted with checkpoint version = 48b305e4 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6012 at fs/inode.c:389 inc_nlink+0x128/0x150 fs/inode.c:389 Modules linked in: CPU: 1 PID: 6012 Comm: syz.6.440 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inc_nlink+0x128/0x150 fs/inode.c:389 lr : inc_nlink+0x128/0x150 fs/inode.c:389 sp : ffff800020f878b0 x29: ffff800020f878b0 x28: ffff7000041f0f2c x27: ffff800020f87aa0 x26: 0000000000000004 x25: fffffc00039c9040 x24: dfff800000000000 x23: 1fffe0001eac848d x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000f5642420 x19: ffff0000f5642468 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082f2d40 x15: 0000000000000002 x14: 0000000000000001 x13: 1fffff800073920e x12: 0000000000080000 x11: 000000000000389e x10: ffff800022a89000 x9 : ffff800008a1c318 x8 : 000000000000389f x7 : 00000000202fbf00 x6 : 0000000000000050 x5 : ffff0000f56450a8 x4 : ffff0000f5645068 x3 : ffff80000a35c858 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inc_nlink+0x128/0x150 fs/inode.c:389 f2fs_i_links_write fs/f2fs/f2fs.h:3056 [inline] f2fs_update_parent_metadata+0xa8/0x2a0 fs/f2fs/dir.c:666 f2fs_add_inline_entry+0x4c4/0x68c fs/f2fs/inline.c:675 f2fs_add_dentry fs/f2fs/dir.c:843 [inline] f2fs_do_add_link+0x264/0x4f8 fs/f2fs/dir.c:886 f2fs_add_link fs/f2fs/f2fs.h:3547 [inline] f2fs_mkdir+0x290/0x4d0 fs/f2fs/namei.c:711 vfs_mkdir+0x314/0x4d8 fs/namei.c:4114 do_mkdirat+0x1b8/0x3ec fs/namei.c:4139 __do_sys_mkdirat fs/namei.c:4154 [inline] __se_sys_mkdirat fs/namei.c:4152 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 285736 hardirqs last enabled at (285735): [] folio_memcg_lock+0xe8/0x1f8 mm/memcontrol.c:2113 hardirqs last disabled at (285736): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (285654): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (285652): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---