--- cve: "CVE-2024-44965" severity: "LOW" cvss: 3.1 epss: "23%" vendor: "Linux" kev: false exploited: false published: "2024-09-04 19:15:30" tags: [cve, security, low] source: tsecurity.de CVE-Dossier exported: "2026-09-17T05:45:44+02:00" --- # CVE-2024-44965 > 3.1 LOW ## Beschreibung In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix pti_clone_pgtable() alignment assumption Guenter reported dodgy crashes on an i386-nosmp build using GCC-11 that had the form of endless traps until entry stack exhaust and then #DF from the stack guard. It turned out that pti_clone_pgtable() had alignment assumptions on the start address, notably it hard assumes start is PMD aligned. This is true on x86_64, but very much not true on i386. These assumptions can cause the end condition to malfunction, leading to a 'short' clone. Guess what happens when the user mapping has a short copy of the entry text? Use the correct increment form for addr to avoid alignment assumptions. ## Patch verfügbar (OSV) - Kernel ≥ 4.19.320 - Kernel ≥ 5.4.282 - Kernel ≥ 5.10.224 - Kernel ≥ 5.15.165 - Kernel ≥ 6.1.105 - Kernel ≥ 6.6.46 - Kernel ≥ 6.10.5 ## Referenzen - - - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-44965) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_