{"id":"CVE-2026-52950","revision":"89a4193771b24b8e86b04f78f22ee701","records":[{"revision":"89a4193771b24b8e86b04f78f22ee701","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-52950","aliases":[],"title":"drm/xe/dma-buf: fix UAF with retry loop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/dma-buf: fix UAF with retry loop\n\nRetry doesn't work here, since bo will be freed on error, leading to\nUAF. However, now that we do the alloc & init before the attach, we can\nnow combine this as one unit and have the init do the alloc for us. This\nshould make the retry safe.\n\nReported by Sashiko.\n\nv2: Fix up the error unwind (CI)\n\n(cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)","state":0,"publishedAt":"2026-06-24T16:28:33.469+00:00","modifiedAt":"2026-10-19T19:47:09.349+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/xe/xe_dma_buf.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\",\n                            \"lessThan\": \"39fdac6be02eb7c3460518c1c4085f75f935c4ce\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\",\n                            \"lessThan\": \"827062952ed9bdf4220466c1f05ce452d04bdedf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\",\n                            \"lessThan\": \"155a372a1cc50fa93387c5d3cdfd614a61e1afd1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/xe/xe_dma_buf.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.33\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.10\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce","https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf","https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-52950","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-52950","identifiers":["CVE-2026-52950"]},"retained":false,"historicalAffected":[]}],"coverage":[]}