loop4: detected capacity change from 0 to 2048 UDF-fs: warning (device loop4): udf_fill_super: No fileset found ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4127 at fs/inode.c:364 inc_nlink+0x130/0x168 fs/inode.c:364 Modules linked in: CPU: 0 PID: 4127 Comm: syz.4.13 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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 : ffff8000202e79e0 x29: ffff8000202e79e0 x28: 1ffff0000405cf62 x27: 1ffff0000405cf5e x26: 0000000000000000 x25: ffff0000da16bc00 x24: ffff0000e6c587a0 x23: 1fffe0001cd8b032 x22: dfff800000000000 x21: 0000000000000007 x20: ffff0000e6c58148 x19: ffff0000e6c58190 x18: ffff8000202e7680 x17: 0000000000000002 x16: ffff80000824ecc0 x15: 00000000000172d3 x14: ffff80001713e500 x13: dfff800000000000 x12: 0000000000040000 x11: 000000000002448b x10: ffff8000230b9000 x9 : 000000000002448c x8 : ffff8000089eaeb4 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000083059e0 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inc_nlink+0x130/0x168 fs/inode.c:364 v9fs_vfs_mkdir_dotl+0x538/0x6a0 fs/9p/vfs_inode_dotl.c:458 vfs_mkdir+0x334/0x4e4 fs/namei.c:4065 do_mkdirat+0x20c/0x610 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 10406 hardirqs last enabled at (10405): [] seqcount_lockdep_reader_access+0x208/0x2cc include/linux/seqlock.h:105 hardirqs last disabled at (10406): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (9576): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (9574): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 91ae5149a8f8ccda ]---