{"id":"DEBIAN-CVE-2025-21990","details":"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-\u003etbo.resource will be NULL. Check for that before dereferencing.  (cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)","modified":"2026-09-01T20:05:43.260754300Z","published":"2025-04-02T13:15:43.547Z","upstream":["CVE-2025-21990"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-21990"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21990.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21990.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}