cve/2024/CVE-2024-42235.md

CVE-2024-42235

Description

In the Linux kernel, the following vulnerability has been resolved:s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()crst_table_free() used to work with NULL pointers before the conversionto ptdescs. Since crst_table_free() can be called with a NULL pointer(error handling in crst_table_upgrade() add an explicit check.Also add the same check to base_crst_free() for consistency reasons.In real life this should not happen, since order two GFP_KERNELallocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.

POC

Reference

No PoCs from references.

Github

• https://github.com/fkie-cad/nvd-json-data-feeds