In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix VAS mm use after free The refcount on mm is dropped before the coprocessor is detached.Referenceshttps://git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8https://git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55adhttps://git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2https://git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251https://git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331