DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888065251950, owner = 0x0, curr 0xffff888026bc3b80, list empty WARNING: CPU: 1 PID: 5041 at kernel/locking/rwsem.c:1350 __up_write kernel/locking/rwsem.c:1349 [inline] WARNING: CPU: 1 PID: 5041 at kernel/locking/rwsem.c:1350 up_write+0x4f5/0x580 kernel/locking/rwsem.c:1604 Modules linked in: CPU: 0 PID: 5041 Comm: syz.5.166 Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__up_write kernel/locking/rwsem.c:1349 [inline] RIP: 0010:up_write+0x4f5/0x580 kernel/locking/rwsem.c:1604 Code: 48 c7 c7 00 1e 8b 8a 48 c7 c6 c0 20 8b 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 2f 09 ea ff 48 83 c4 08 <0f> 0b e9 71 fd ff ff 48 c7 c1 88 9d e9 8d 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc90002ea7d20 EFLAGS: 00010292 RAX: 40bd98973621da00 RBX: ffffffff8a8b1ee0 RCX: 0000000000040000 RDX: ffffc9000c881000 RSI: 00000000000220ef RDI: 00000000000220f0 RBP: ffffc90002ea7df0 R08: ffffffff81669a1c R09: ffffed10172267a8 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888065251950 R14: 1ffff920005d4fac R15: dffffc0000000000 FS: 00007f3b9e6c46c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557a19105950 CR3: 0000000065c3c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock include/linux/fs.h:794 [inline] done_path_create fs/namei.c:3886 [inline] do_mknodat+0x473/0x690 fs/namei.c:4009 __do_sys_mknod fs/namei.c:4027 [inline] __se_sys_mknod fs/namei.c:4025 [inline] __x64_sys_mknod+0x8a/0xa0 fs/namei.c:4025 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f3ba04b1759 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3b9e6c4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007f3ba0669208 RCX: 00007f3ba04b1759 RDX: 000000000000070a RSI: 0000000000000000 RDI: 000000002009e000 RBP: 00007f3ba052475e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f3ba0669208 R15: 00007fff8d0cf418