{"id":"CVE-2025-21990","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-21990","generatedAt":"2026-10-28T02:55:26.649Z","title":"In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags PRT BOs may not have any backing store, so bo->tbo.resource will be NULL.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags\n\nPRT BOs may not have any backing store, so bo->tbo.resource will be\nNULL. Check for that before dereferencing.\n\n(cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)","published":"2025-04-02T13:15:44.000Z","lastModified":"2026-06-17T08:44:47.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["linux/linux kernel"],"epss":{"score":0.00189,"percentile":0.08485,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/6cc30748e17ea2a64051ceaf83a8372484e597f1","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/72235808eabea93055b459a63443bd9cd6b08aa4","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af23e39b9e9280b1f6299b6f2fa090a1694240ad","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-21990","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}