WARNING: CPU: 1 PID: 27016 at kernel/locking/rwsem.c:1342 __up_write kernel/locking/rwsem.c:1341 [inline]
WARNING: CPU: 1 PID: 27016 at kernel/locking/rwsem.c:1342 up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594
Modules linked in:
CPU: 1 PID: 27016 Comm: syz-executor.5 Not tainted 5.15.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__up_write kernel/locking/rwsem.c:1341 [inline]
RIP: 0010:up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594
Code: 48 c7 c7 e0 ff 8a 8a 48 c7 c6 a0 02 8b 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 d1 13 ea ff 48 83 c4 08 <0f> 0b e9 86 fd ff ff 48 c7 c1 08 3b e4 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000407fc80 EFLAGS: 00010292
RAX: da75b3db9c84a000 RBX: ffffffff8a8b00c0 RCX: 0000000000040000
RDX: ffffc90015ff9000 RSI: 000000000000f076 RDI: 000000000000f077
RBP: ffffc9000407fd50 R08: ffffffff816658fc R09: ffffed10173667a8
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880287011f0 R14: 1ffff9200080ff98 R15: dffffc0000000000
FS: 00007f0ebd6546c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7f7759b198 CR3: 0000000040677000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
inode_unlock include/linux/fs.h:792 [inline]
unlock_mount fs/namespace.c:2281 [inline]
do_new_mount_fc fs/namespace.c:2943 [inline]
do_new_mount+0x84e/0xae0 fs/namespace.c:2996
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f0ec72f3ae9
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:00007f0ebd6540c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0ec7413050 RCX: 00007f0ec72f3ae9
RDX: 0000000020000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 00007f0ec733f47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0ec7413050 R15: 00007ffec5f4cd78
</TASK>