{"id":"CVE-2026-68240","revision":"7d01e42c447b470aadbc4403ff9415a8","records":[{"revision":"7d01e42c447b470aadbc4403ff9415a8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68240","aliases":[],"title":"drm/gpusvm: publish dpagemap early to avoid device mapping leak on error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: publish dpagemap early to avoid device mapping leak on error\n\ndrm_gpusvm_get_pages() only stored the local dpagemap into\nsvm_pages->dpagemap on the success path. If a later page failed (e.g.\n-EOPNOTSUPP when ctx->allow_mixed is false) and jumped to err_unmap,\nsvm_pages->dpagemap was still NULL, so __drm_gpusvm_unmap_pages() skipped\ndevice_unmap() and leaked the device mappings already created.\n\nAssign svm_pages->dpagemap when the first device page is mapped so the\nerr_unmap path can device_unmap() those mappings.\n\nThis issue was found by Sashiko AI review.","state":0,"publishedAt":"2026-08-10T12:01:05.81+00:00","modifiedAt":"2026-10-19T20:58:57.805+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/drm_gpusvm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9\",\n                            \"lessThan\": \"e8362523fd1b61712f7d996802f9b5dee545c7e6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9\",\n                            \"lessThan\": \"72e4fca5529e45b5beebad79d804de442f632324\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9\",\n                            \"lessThan\": \"7f708f51e3955bda0d77a0b67ab9bea6c97fea99\",\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/drm_gpusvm.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\": \"6.18.44\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.6\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\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:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e8362523fd1b61712f7d996802f9b5dee545c7e6","https://git.kernel.org/stable/c/72e4fca5529e45b5beebad79d804de442f632324","https://git.kernel.org/stable/c/7f708f51e3955bda0d77a0b67ab9bea6c97fea99"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68240","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68240","identifiers":["CVE-2026-68240"]},"retained":false,"historicalAffected":[]}],"coverage":[]}