{"cve":"CVE-2025-38673","nvd":{"published":"2025-08-22T16:15:42.953","modified":"2026-06-17T09:17:37.803","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/gem-framebuffer: Use dma_buf from GEM object instance\"\n\nThis reverts commit cce16fcd7446dcff7480cd9d2b6417075ed81065.\n\nThe dma_buf field in struct drm_gem_object is not stable over the\nobject instance's lifetime. The field becomes NULL when user space\nreleases the final GEM handle on the buffer object. This resulted\nin a NULL-pointer deref.\n\nWorkarounds in commit 5307dce878d4 (\"drm/gem: Acquire references on\nGEM handles for framebuffers\") and commit f6bfc9afc751 (\"drm/framebuffer:\nAcquire internal references on GEM handles\") only solved the problem\npartially. They especially don't work for buffer objects without a DRM\nframebuffer associated.\n\nHence, this revert to going back to using .import_attach->dmabuf.\n\nv3:\n- cc stable","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/2712ca878b688682ac2ce02aefc413fc76019cd9","https://git.kernel.org/stable/c/e31f5a1c2cd38bf977736cdfa79444e19d4005ec"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:07:46.309729541+00:00"},"epss":{"cve":"CVE-2025-38673","score":0.0013,"percentile":0.02635,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}