------------[ cut here ]------------ WARNING: CPU: 1 PID: 6600 at fs/inode.c:387 inc_nlink+0x128/0x154 fs/inode.c:387 Modules linked in: CPU: 1 PID: 6600 Comm: syz-executor.4 Not tainted 6.1.26-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+0x128/0x154 fs/inode.c:387 lr : inc_nlink+0x128/0x154 fs/inode.c:387 sp : ffff80001f217b60 x29: ffff80001f217b60 x28: dfff800000000000 x27: 0000000000000000 x26: 1fffe00019d107e3 x25: ffff800012366f48 x24: 0000000000000000 x23: 1fffe00027cec030 x22: dfff800000000000 x21: 0000000000000000 x20: ffff00013e760138 x19: ffff00013e760180 x18: ffff80001f2173c0 x17: ffff80001558d000 x16: ffff80001202ebc0 x15: 0000000000000000 x14: 00000000ffff8000 x13: 000000006f481aaf x12: 0000000000040000 x11: 000000000000d971 x10: ffff800027065000 x9 : ffff800008a9e88c x8 : 000000000000d972 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:387 inode_inc_link_count include/linux/fs.h:2511 [inline] ext2_mkdir+0x54/0x1e4 fs/ext2/namei.c:238 vfs_mkdir+0x334/0x4e4 fs/namei.c:4036 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+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 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:581 irq event stamp: 3228 hardirqs last enabled at (3227): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (3228): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3158): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (3156): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---