------------[ cut here ]------------
WARNING: CPU: 0 PID: 6529 at fs/inode.c:464 inc_nlink+0x120/0x170 fs/inode.c:464
Modules linked in:
CPU: 0 UID: 0 PID: 6529 Comm: syz.0.15 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : inc_nlink+0x120/0x170 fs/inode.c:464
lr : inc_nlink+0x120/0x170 fs/inode.c:464
sp : ffff80009be67b80
x29: ffff80009be67b80 x28: 1fffe0001d9b215c x27: dfff800000000000
x26: 0000000000000000 x25: 0000000000000000 x24: 000000000000007e
x23: 1fffe0001d9b2160 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000ecd90ab8 x19: ffff0000ecd90b00 x18: ffff80009be673e0
x17: 0000000000022138 x16: ffff80008a38cfdc x15: 0000000000000001
x14: 1fffe00018005720 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600018005721 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000d5d6bc80 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0000e0313a70 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inc_nlink+0x120/0x170 fs/inode.c:464 (P)
 inc_nlink+0x120/0x170 fs/inode.c:464 (L)
 inode_inc_link_count include/linux/fs.h:2515 [inline]
 sysv_mkdir+0x2c/0x138 fs/sysv/namei.c:119
 vfs_mkdir+0x27c/0x410 fs/namei.c:4311
 do_mkdirat+0x248/0x574 fs/namei.c:4334
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4347
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 11199124
hardirqs last  enabled at (11199123): [<ffff800080aa9e0c>] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234
hardirqs last disabled at (11199124): [<ffff80008a389000>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (11196608): [<ffff8000801f9c1c>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (11196608): [<ffff8000801f9c1c>] handle_softirqs+0xa38/0xbf8 kernel/softirq.c:582
softirqs last disabled at (11196597): [<ffff800080020ccc>] __do_softirq+0x14/0x20 kernel/softirq.c:588
---[ end trace 0000000000000000 ]---