==================================================================
BUG: KCSAN: data-race in __dentry_kill / lookup_fast

read-write to 0xffff888141a84cc0 of 4 bytes by task 6926 on cpu 0:
 dentry_unlist fs/dcache.c:547 [inline]
 __dentry_kill+0x18f/0x4a0 fs/dcache.c:603
 dentry_kill+0x8d/0x1e0
 dput+0x118/0x1f0 fs/dcache.c:913
 path_put fs/namei.c:562 [inline]
 terminate_walk+0xf2/0x270 fs/namei.c:686
 path_openat+0x191b/0x1d70 fs/namei.c:3780
 do_filp_open+0xf6/0x200 fs/namei.c:3809
 do_sys_openat2+0xab/0x110 fs/open.c:1440
 do_sys_open fs/open.c:1455 [inline]
 __do_sys_openat fs/open.c:1471 [inline]
 __se_sys_openat fs/open.c:1466 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1466
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888141a84cc0 of 4 bytes by task 6925 on cpu 1:
 d_revalidate fs/namei.c:861 [inline]
 lookup_fast+0xd9/0x290 fs/namei.c:1643
 open_last_lookups fs/namei.c:3514 [inline]
 path_openat+0x446/0x1d70 fs/namei.c:3776
 do_filp_open+0xf6/0x200 fs/namei.c:3809
 do_sys_openat2+0xab/0x110 fs/open.c:1440
 do_sys_open fs/open.c:1455 [inline]
 __do_sys_openat fs/open.c:1471 [inline]
 __se_sys_openat fs/open.c:1466 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1466
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0040000c -> 0x0000800c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 6925 Comm: syz-executor.5 Not tainted 6.7.0-rc5-syzkaller-00030-geaadbbaaff74 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
==================================================================