CVE-2023-52934

In the Linux kernel, the following vulnerability has been resolved: mm/MADVCOLLAPSE: catch !none !huge !bad pmd lookups In commit 34488399fa08 "mm/madvise: add file and shmem support to MADVCOLLAPSE" we make the following change to findpmdorthpornone: - if !pmdpresentpmde - return SCANPMDNULL; + ...

CVE-2023-52934

CVE-2023-52934 refers to a Linux kernel MADV_COLLAPSE issue. A change in MADV_COLLAPSE handling of pmd lookups (replacing a !pmd_present check with pmd_none) aims to distinguish none-pmd cases from absent/bad-pmd cases to prevent misclassifying swap or other entries as huge-pmd mappings. The prov...

CVE-2023-52934 mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups

In the Linux kernel, the following vulnerability has been resolved: mm/MADVCOLLAPSE: catch !none !huge !bad pmd lookups In commit 34488399fa08 "mm/madvise: add file and shmem support to MADVCOLLAPSE" we make the following change to findpmdorthpornone: - if !pmdpresentpmde - return SCANPMDNULL; + ...

PT-2023-34933 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.1.11 Description: The issue is related to mm/MADV COLLAPSE, which involves catching certain pmd lookups. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel...