In the Linux kernel, the following vulnerability has been resolved:

configfs: fix lockless traversals of ->s_children

Having the parent directory locked protects entries from removal
by another thread, but it does *not* protect cursors from being
moved around by lseek() - or freed, for that matter.

https://git.kernel.org/stable/c/459860529c109c5ce08b81c0776ca1200eaaeb4a

https://git.kernel.org/stable/c/637ef4961470e04455102b34ac484a34d8eca0a4

https://git.kernel.org/stable/c/77fd6f50f633a52c2db061e7d71d8cb486b0265e

https://git.kernel.org/stable/c/91f289728ec706b7ff1ca0ee845dd73ff2253488

https://git.kernel.org/stable/c/9b9e8bb81c41fd27e7b57a1c936fde140548535f

https://git.kernel.org/stable/c/9e57e2863872e82e7c7237bc32299f67ebebc543

https://git.kernel.org/stable/c/b166ab78dc3f48e83d2c80bdfde4159b31fdc5fb

https://git.kernel.org/stable/c/e6d93108e0a27d7e6f95c7e45017d14ba2900d32

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