------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888044dc14e8, owner = 0x0, curr 0xffff88801fad8000, list empty WARNING: CPU: 0 PID: 5367 at kernel/locking/rwsem.c:1381 __up_write kernel/locking/rwsem.c:1380 [inline] WARNING: CPU: 0 PID: 5367 at kernel/locking/rwsem.c:1381 up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Modules linked in: CPU: 0 UID: 0 PID: 5367 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-12063-g37816488247d #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__up_write kernel/locking/rwsem.c:1380 [inline] RIP: 0010:up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Code: d0 48 c7 c7 a0 ec 8a 8b 48 c7 c6 c0 ee 8a 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 d3 56 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 74 98 a3 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000d427d90 EFLAGS: 00010296 RAX: ea40ed16b11a2f00 RBX: ffff888044dc14e8 RCX: ffff88801fad8000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: 0000000000000000 R13: ffff888044dc1540 R14: ffff888044dc14e8 R15: 1ffff110089b829e FS: 00007f460c4016c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f460c400fc8 CR3: 0000000043203000 CR4: 0000000000352ef0 Call Trace: inode_unlock include/linux/fs.h:879 [inline] done_path_create fs/namei.c:4177 [inline] do_mknodat+0x428/0x4d0 fs/namei.c:4300 __do_sys_mknodat fs/namei.c:4313 [inline] __se_sys_mknodat fs/namei.c:4310 [inline] __x64_sys_mknodat+0xa7/0xc0 fs/namei.c:4310 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f460b58ebe9 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:00007f460c401038 EFLAGS: 00000246 ORIG_RAX: 0000000000000103 RAX: ffffffffffffffda RBX: 00007f460b7b6180 RCX: 00007f460b58ebe9 RDX: 0000000000000000 RSI: 0000200000001600 RDI: 0000000000000005 RBP: 00007f460b611e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000700 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f460b7b6218 R14: 00007f460b7b6180 R15: 00007fff82a96c78