------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff888043fe94e8, owner = 0x0, curr 0xffff888036512440, list empty WARNING: CPU: 0 PID: 5328 at kernel/locking/rwsem.c:1341 __up_read+0x5f5/0x680 kernel/locking/rwsem.c:1341 Modules linked in: CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #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_read+0x5f5/0x680 kernel/locking/rwsem.c:1341 Code: 44 d0 48 c7 c7 c0 f1 8a 8b 48 c7 c6 60 f2 8a 8b 4c 89 ea 48 8b 4c 24 08 4d 89 e0 4d 89 f1 41 52 e8 f0 3f e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 72 fb ff ff 48 c7 c1 34 3d a1 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000f777940 EFLAGS: 00010292 RAX: 22950e04a7603500 RBX: ffff888043fe94e8 RCX: ffff888036512440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffffc9000f7779f8 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888036512440 R15: ffff888043fe9540 FS: 00007f1a2722a6c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fd1ce3d168 CR3: 00000000427f9000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock_shared include/linux/fs.h:894 [inline] lookup_slow+0x5e/0x70 fs/namei.c:1835 walk_component fs/namei.c:2138 [inline] link_path_walk+0x935/0xea0 fs/namei.c:2506 path_parentat fs/namei.c:2710 [inline] __filename_parentat+0x246/0x670 fs/namei.c:2734 filename_parentat fs/namei.c:2752 [inline] filename_create+0xcf/0x470 fs/namei.c:4129 do_mkdirat+0xa0/0x590 fs/namei.c:4400 __do_sys_mkdirat fs/namei.c:4425 [inline] __se_sys_mkdirat fs/namei.c:4423 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4423 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: 0033:0x7f1a2638e929 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:00007f1a2722a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f1a265b6160 RCX: 00007f1a2638e929 RDX: 0000000000000000 RSI: 0000200000000240 RDI: ffffffffffffff9c RBP: 00007f1a26410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f1a265b6160 R15: 00007ffca52e5628