syzbot

==================================================================
BUG: KCSAN: data-race in mntput / mntput

write to 0xffff8881ab83212c of 4 bytes by task 14893 on cpu 1:
 mntput+0x63/0x70 fs/namespace.c:1349
 path_put+0x2f/0x40 fs/namei.c:562
 path_getxattr+0x18e/0x230 fs/xattr.c:789
 __do_sys_getxattr fs/xattr.c:800 [inline]
 __se_sys_getxattr fs/xattr.c:797 [inline]
 __x64_sys_getxattr+0x5b/0x70 fs/xattr.c:797
 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

read to 0xffff8881ab83212c of 4 bytes by task 14908 on cpu 0:
 mntput+0x29/0x70 fs/namespace.c:1348
 path_put+0x2f/0x40 fs/namei.c:562
 path_getxattr+0x18e/0x230 fs/xattr.c:789
 __do_sys_getxattr fs/xattr.c:800 [inline]
 __se_sys_getxattr fs/xattr.c:797 [inline]
 __x64_sys_getxattr+0x5b/0x70 fs/xattr.c:797
 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

value changed: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 14908 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
==================================================================