------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff0000def30798, owner = 0x0, curr 0xffff0000d4c01bc0, list empty WARNING: CPU: 1 PID: 5131 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline] WARNING: CPU: 1 PID: 5131 at kernel/locking/rwsem.c:1372 up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626 Modules linked in: CPU: 1 PID: 5131 Comm: syz.1.167 Not tainted 6.1.126-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 : ffff800021837b60 x29: ffff800021837be0 x28: ffff0000e02aa8d0 x27: 1fffe0001bde6100 x26: dfff800000000000 x25: 1fffe0001bde60f4 x24: ffff0000def307f0 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d4c01bc0 x20: ffff0000def30798 x19: ffff0000def30798 x18: ffff800021836f60 x17: 0000000000000000 x16: ffff800012330a64 x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000001f702 x10: ffff80002239b000 x9 : 794e2c8658b5e300 x8 : 794e2c8658b5e300 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021837458 x4 : ffff800015b731c0 x3 : ffff8000085869f8 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 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:3927 [inline] do_mknodat+0x43c/0x610 fs/namei.c:4050 __do_sys_mknodat fs/namei.c:4063 [inline] __se_sys_mknodat fs/namei.c:4060 [inline] __arm64_sys_mknodat+0xb0/0xcc fs/namei.c:4060 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c 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: 140976 hardirqs last enabled at (140975): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (140976): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (140862): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (140860): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---