------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff88803c95a278, owner = 0x0, curr 0xffff88802a61d7c0, list empty
WARNING: CPU: 1 PID: 8834 at kernel/locking/rwsem.c:1343 __up_read+0x602/0x690 kernel/locking/rwsem.c:1343
Modules linked in:
CPU: 1 PID: 8834 Comm: syz-executor.4 Not tainted 6.3.0-rc7-syzkaller-00189-g2caeeb9d4a1b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:__up_read+0x602/0x690 kernel/locking/rwsem.c:1343
Code: ea 8a 48 0f 44 c1 48 c7 c7 e0 71 ea 8a 48 c7 c6 80 72 ea 8a 4c 89 fa 4c 89 f1 49 89 d8 4d 89 e9 50 e8 32 fb e8 ff 48 83 c4 08 <0f> 0b 48 bb 00 00 00 00 00 fc ff df 4c 8b 2c 24 e9 4e fb ff ff 48
RSP: 0018:ffffc90016eb7a20 EFLAGS: 00010292
RAX: 8ded8ae514c2dc00 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000d3d0000 RSI: 000000000000e25e RDI: 000000000000e25f
RBP: ffffc90016eb7ad8 R08: ffffffff81528022 R09: fffff52002dd6efd
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803c95a2d0
R13: ffff88802a61d7c0 R14: ffff88803c95a278 R15: 0000000000000000
FS:  00007f4966bdd700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556226848 CR3: 000000007cce6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:773 [inline]
 lookup_slow+0x5e/0x70 fs/namei.c:1704
 walk_component+0x2d0/0x400 fs/namei.c:1994
 lookup_last fs/namei.c:2451 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2475
 filename_lookup+0x255/0x610 fs/namei.c:2504
 user_path_at_empty+0x44/0x180 fs/namei.c:2877
 user_path_at include/linux/namei.h:57 [inline]
 __do_sys_move_mount fs/namespace.c:3801 [inline]
 __se_sys_move_mount+0x232/0xd00 fs/namespace.c:3768
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f496f48c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4966bdd168 EFLAGS: 00000246 ORIG_RAX: 00000000000001ad
RAX: ffffffffffffffda RBX: 00007f496f5ac050 RCX: 00007f496f48c169
RDX: 0000000000000005 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00007f496f4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000140 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffffd59d75f R14: 00007f4966bdd300 R15: 0000000000022000
 </TASK>