kernel: lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure

A flaw was found in the Linux kernel. This vulnerability, located in the lib/testhmm.c component, arises from improper handling of memory allocation failures within the dmirrordeviceevictchunk function. Specifically, if kcalloc returns null due to insufficient physical memory, dereferencing srcpf...

CVE-2024-38543

In the Linux kernel, the following vulnerability has been resolved: lib/testhmm.c: handle srcpfns and dstpfns allocation failure The kcalloc in dmirrordeviceevictchunk will return null if the physical memory has run out. As a result, if srcpfns or dstpfns is dereferenced, the null pointer...