WARNING: CPU: 1 PID: 5170 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline] WARNING: CPU: 1 PID: 5170 at kernel/locking/rwsem.c:1372 up_write+0x494/0x5bc kernel/locking/rwsem.c:1626 Modules linked in: CPU: 1 PID: 5170 Comm: syz.6.144 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __up_write kernel/locking/rwsem.c:1371 [inline] pc : up_write+0x494/0x5bc kernel/locking/rwsem.c:1626 lr : __up_write kernel/locking/rwsem.c:1371 [inline] lr : up_write+0x494/0x5bc kernel/locking/rwsem.c:1626 sp : ffff800021477c20 x29: ffff800021477c30 x28: ffff0000dad08000 x27: ffff800021477c80 x26: dfff800000000000 x25: 1fffe0001fbcf029 x24: ffff0000fde78138 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000dad08000 x20: ffff0000fde780e0 x19: ffff0000fde780e0 x18: ffff800011b9bf60 x17: 1fffe00033eaa57e x16: ffff8000082d92bc x15: 0000000040000000 x14: 0000000000000001 x13: 1fffe00033eacc30 x12: 0000000000ff0100 x11: ff0080000a8df3f0 x10: 0000000000000003 x9 : b46dcf62e05bad00 x8 : b46dcf62e05bad00 x7 : ffff800008257984 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000007 x1 : ffff800011b9da80 x0 : ffff80018a3dd000 Call trace: __up_write kernel/locking/rwsem.c:1371 [inline] up_write+0x494/0x5bc kernel/locking/rwsem.c:1626 inode_unlock include/linux/fs.h:763 [inline] done_path_create fs/namei.c:3935 [inline] do_mkdirat+0x1ec/0x3ec fs/namei.c:4142 __do_sys_mkdirat fs/namei.c:4154 [inline] __se_sys_mkdirat fs/namei.c:4152 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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:585 irq event stamp: 244 hardirqs last enabled at (243): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (243): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5004 hardirqs last disabled at (244): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (174): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (172): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---