------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff88803b4a5bb0, owner = 0x0, curr 0xffff88801d6cd940, list empty
WARNING: CPU: 1 PID: 6599 at kernel/locking/rwsem.c:1343 __up_read+0x60c/0x6a0 kernel/locking/rwsem.c:1343
Modules linked in:
CPU: 1 PID: 6599 Comm: syz-executor.5 Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__up_read+0x60c/0x6a0 kernel/locking/rwsem.c:1343
Code: 8b 48 0f 44 c1 48 c7 c7 60 99 6a 8b 48 c7 c6 00 9a 6a 8b 4c 89 fa 4c 89 f1 49 89 d8 4d 89 e9 50 e8 39 f9 e7 ff 48 83 c4 08 90 <0f> 0b 90 90 48 bb 00 00 00 00 00 fc ff df 4c 8b 2c 24 e9 42 fb ff
RSP: 0018:ffffc90016e87a60 EFLAGS: 00010296
RAX: 64dc45547cfcd100 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000c59e000 RSI: 000000000000b35c RDI: 000000000000b35d
RBP: ffffc90016e87b18 R08: ffffffff81546d22 R09: 1ffff92002dd0ea0
R10: dffffc0000000000 R11: fffff52002dd0ea1 R12: ffff88803b4a5c08
R13: ffff88801d6cd940 R14: ffff88803b4a5bb0 R15: 0000000000000000
FS:  00007f02b57c06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02b4620000 CR3: 0000000025c17000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:817 [inline]
 lookup_slow+0x5e/0x70 fs/namei.c:1712
 walk_component+0x2d0/0x400 fs/namei.c:2002
 lookup_last fs/namei.c:2459 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2483
 filename_lookup+0x255/0x610 fs/namei.c:2512
 user_path_at_empty+0x42/0x60 fs/namei.c:2911
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3674 [inline]
 __do_sys_mount fs/namespace.c:3886 [inline]
 __se_sys_mount+0x29a/0x3c0 fs/namespace.c:3863
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f02b4a7cce9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f02b57c00c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f02b4b9c120 RCX: 00007f02b4a7cce9
RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000020000080
RBP: 00007f02b4ac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000800000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f02b4b9c120 R15: 00007ffd371ee678
 </TASK>