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BUG: KCSAN: data-race in __dentry_kill / vfs_unlink

write to 0xffff888127610300 of 4 bytes by task 6252 on cpu 0:
 dont_mount include/linux/dcache.h:348 [inline]
 vfs_unlink+0x2c6/0x580 fs/namei.c:4152
 do_unlinkat+0x278/0x540 fs/namei.c:4218
 __do_sys_unlink fs/namei.c:4266 [inline]
 __se_sys_unlink fs/namei.c:4264 [inline]
 __x64_sys_unlink+0x2c/0x30 fs/namei.c:4264
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888127610300 of 4 bytes by task 1438 on cpu 1:
 dentry_unlist fs/dcache.c:572 [inline]
 __dentry_kill+0x1ef/0x450 fs/dcache.c:603
 dput+0x218/0x430 fs/dcache.c:913
 path_put+0x1b/0x30 fs/namei.c:557
 do_readlinkat+0x198/0x210 fs/stat.c:458
 __do_sys_readlink fs/stat.c:476 [inline]
 __se_sys_readlink fs/stat.c:473 [inline]
 __x64_sys_readlink+0x43/0x50 fs/stat.c:473
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00600008 -> 0x00000008

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1438 Comm: udevd Not tainted 5.17.0-rc5-syzkaller-00021-g23d04328444a-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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