EXT2-fs (loop4): warning: mounting ext3 filesystem as ext2 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 11622 at fs/inode.c:364 inc_nlink+0x130/0x168 fs/inode.c:364 Modules linked in: CPU: 0 PID: 11622 Comm: syz-executor.4 Not tainted 5.15.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inc_nlink+0x130/0x168 fs/inode.c:364 lr : inc_nlink+0x130/0x168 fs/inode.c:364 sp : ffff800021e57b30 x29: ffff800021e57b30 x28: ffff80001494fd20 x27: dfff800000000000 x26: ffff000129730e18 x25: 0000000000000000 x24: ffff000129730e40 x23: 1fffe000252e61cc x22: dfff800000000000 x21: 0000000000000000 x20: ffff000129730e18 x19: ffff000129730e60 x18: 0000000000000000 x17: ff8080000a5aca08 x16: ffff8000119404a0 x15: ffff80000a5aca08 x14: 00000000ffff8000 x13: ffffffffffffffff x12: 0000000000040000 x11: 0000000000005e06 x10: ffff80001e3cd000 x9 : ffff8000089dae90 x8 : 0000000000005e07 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inc_nlink+0x130/0x168 fs/inode.c:364 inode_inc_link_count include/linux/fs.h:2423 [inline] ext2_mkdir+0x54/0x258 fs/ext2/namei.c:241 vfs_mkdir+0x350/0x514 fs/namei.c:3994 do_mkdirat+0x20c/0x610 fs/namei.c:4019 __do_sys_mkdirat fs/namei.c:4034 [inline] __se_sys_mkdirat fs/namei.c:4032 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4032 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 2360 hardirqs last enabled at (2359): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (2360): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (2290): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (2288): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace e58f4072fa32aca9 ]---