CVE-2024-57881

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue arises in the split large buddy() function where pfn to page() might be called on a possibly non-existent PFN. In specific corner cases, such as freeing the highest pageblock in the last memory section with CONFIG SPARSEMEM and !CONFIG SPARSEMEM EXTREME, this could lead to pfn to section() returning NULL and section mem map addr() dereferencing that NULL pointer. The problem was identified through code inspection.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.