EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9781 at fs/inode.c:388 inc_nlink+0x128/0x154 fs/inode.c:388 Modules linked in: CPU: 1 PID: 9781 Comm: syz-executor.2 Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inc_nlink+0x128/0x154 fs/inode.c:388 lr : inc_nlink+0x128/0x154 fs/inode.c:388 sp : ffff80001e527b70 x29: ffff80001e527b70 x28: 1fffe0002628802c x27: dfff800000000000 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000007d00 x23: 1fffe00026288030 x22: dfff800000000000 x21: 0000000000000000 x20: ffff000131440138 x19: ffff000131440180 x18: ffff80001e5273c0 x17: ffff800015d6d000 x16: ffff8000122bc500 x15: 0000000000000000 x14: 00000000ffff8000 x13: 00000000f1242537 x12: 0000000000000003 x11: 0000000000040000 x10: 00000000000122e2 x9 : ffff80001e929000 x8 : 00000000000122e3 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inc_nlink+0x128/0x154 fs/inode.c:388 inode_inc_link_count include/linux/fs.h:2157 [inline] ext2_mkdir+0x54/0x1e4 fs/ext2/namei.c:238 vfs_mkdir+0x240/0x3a8 fs/namei.c:4038 do_mkdirat+0x20c/0x610 fs/namei.c:4061 __do_sys_mkdirat fs/namei.c:4076 [inline] __se_sys_mkdirat fs/namei.c:4074 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4074 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x15c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 2826 hardirqs last enabled at (2825): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:242 hardirqs last disabled at (2826): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (2672): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2670): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---