{"id":"CVE-2023-54042","title":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64s: Fix VAS mm use after free\n\nThe refcount on mm is dropped before the coprocessor is detached.","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64s: Fix VAS mm use after free\n\nThe refcount on mm is dropped before the coprocessor is detached.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 < f7d92313002b2d543500cc417d8079aaed1fb0a8","Linux >= 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 < 4e82f92c349ea603736ade1e814861c0182a55ad","Linux >= 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 < db8657fdd53c5e3069149d7f957cb60e63027bb2","Linux >= 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 < 421cd1544480f2458042fe7f4913a2069c4d7251","Linux >= 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 < b4bda59b47879cce38a6ec5a01cd3cac702b5331","Linux 5.14"],"published":"2025-12-24","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:51.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-54042","references":[{"url":"https://git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0014,"epssPercentile":0.0333,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:37:58.217277Z"},"ingestedAt":"2026-10-15T22:48:25.425Z","slug":"CVE-2023-54042","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64s: Fix VAS mm use after free\n\nThe refcount on mm is dropped before the coprocessor is detached.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}