DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff88805d4c0a90, owner = 0x0, curr 0xffff888029efda00, list empty
WARNING: CPU: 1 PID: 5640 at kernel/locking/rwsem.c:1343 __up_read+0x5fb/0x760 kernel/locking/rwsem.c:1343
Modules linked in:
CPU: 1 PID: 5640 Comm: syz-executor.4 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__up_read+0x5fb/0x760 kernel/locking/rwsem.c:1343
Code: 3c 02 00 0f 85 c0 00 00 00 48 8b 13 41 57 4c 89 f1 48 c7 c6 20 b6 2c 8b 4c 8b 4c 24 10 48 c7 c7 c0 b4 2c 8b e8 96 5c e5 ff 90 <0f> 0b 90 90 59 e9 fc fa ff ff 48 c7 c7 d4 4c e5 8f 48 89 04 24 e8
RSP: 0018:ffffc9000496fb38 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88805d4c0a90 RCX: ffffc9000bd2a000
RDX: 0000000000040000 RSI: ffffffff815149e6 RDI: 0000000000000001
RBP: ffffffff8fe54cd4 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88805d4c0a98
R13: 1ffff9200092df6b R14: ffff88805d4c0a90 R15: ffffffff8b2cb400
FS:  00007f737b0766c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efddc66d270 CR3: 000000007c630000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:806 [inline]
 lookup_slow fs/namei.c:1710 [inline]
 walk_component+0x35b/0x5b0 fs/namei.c:2004
 lookup_last fs/namei.c:2469 [inline]
 path_lookupat+0x17f/0x770 fs/namei.c:2493
 filename_lookup+0x1e5/0x5b0 fs/namei.c:2522
 user_path_at_empty+0x42/0x60 fs/namei.c:2929
 user_path_at include/linux/namei.h:58 [inline]
 do_mount fs/namespace.c:3689 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount fs/namespace.c:3875 [inline]
 __x64_sys_mount+0x1ff/0x320 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f737a27cee9
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:00007f737b0760c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f737a3ac050 RCX: 00007f737a27cee9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000020000300
RBP: 00007f737a2c949e R08: 0000000000000000 R09: 0000000000000000
R10: 000000000009101a R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f737a3ac050 R15: 00007ffdae0dd998
 </TASK>