------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff0000e18bf318, owner = 0x0, curr 0xffff0000d51db780, list empty WARNING: CPU: 1 PID: 7309 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline] WARNING: CPU: 1 PID: 7309 at kernel/locking/rwsem.c:1372 up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626 Modules linked in: CPU: 1 PID: 7309 Comm: syz.3.935 Not tainted 6.1.112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __up_write kernel/locking/rwsem.c:1371 [inline] pc : up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626 lr : __up_write kernel/locking/rwsem.c:1371 [inline] lr : up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626 sp : ffff800021037b60 x29: ffff800021037be0 x28: ffff0000f2062468 x27: 1fffe0001c317e70 x26: dfff800000000000 x25: 1fffe0001c317e64 x24: ffff0000e18bf370 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d51db780 x20: ffff0000e18bf318 x19: ffff0000e18bf318 x18: 1fffe000367a3376 x17: ffff8000159cd000 x16: ffff800008305998 x15: ffff0001b3d19bbc x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000003 x9 : d8008d6ba8df5900 x8 : d8008d6ba8df5900 x7 : ffff80000827d484 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000007 x1 : ffff8000123ec6e0 x0 : ffff80019e3f6000 Call trace: __up_write kernel/locking/rwsem.c:1371 [inline] up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626 inode_unlock include/linux/fs.h:763 [inline] done_path_create fs/namei.c:3929 [inline] do_mknodat+0x43c/0x610 fs/namei.c:4052 __do_sys_mknodat fs/namei.c:4065 [inline] __se_sys_mknodat fs/namei.c:4062 [inline] __arm64_sys_mknodat+0xb0/0xcc fs/namei.c:4062 __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:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 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:585 irq event stamp: 428 hardirqs last enabled at (427): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (427): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (428): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (420): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (420): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599 softirqs last disabled at (353): [] __do_softirq+0x14/0x20 kernel/softirq.c:605 ---[ end trace 0000000000000000 ]---