{"id":"CVE-2025-40276","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Flush shmem writes before mapping buffers CPU-uncached\n\nThe shmem layer zeroes out the new pages using cached mappings, and if\nwe don't CPU-flush we might …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Flush shmem writes before mapping buffers CPU-uncached\n\nThe shmem layer zeroes out the new pages using cached mappings, and if\nwe don't CPU-flush we might …","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H","published":"2025-12-06","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:10:00.173","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40276","references":[{"url":"https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8355eea2a2e9c323021dfdcb95d7767d382123c4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00139,"epssPercentile":0.02866,"ingestedAt":"2026-10-15T19:25:46.332Z","slug":"CVE-2025-40276","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Flush shmem writes before mapping buffers CPU-uncached\n\nThe shmem layer zeroes out the new pages using cached mappings, and if\nwe don't CPU-flush we might leave dirty cachelines behind, leading to\npotential data leaks and/or asynchronous buffer corruption when dirty\ncachelines are evicted.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":40.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}