{"id":"CVE-2026-97916","revision":"9e649557d4b948889742623d0e449130","records":[{"revision":"9e649557d4b948889742623d0e449130","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97916","aliases":[],"title":"accel/ivpu: Validate firmware log buffer metadata","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Validate firmware log buffer metadata\n\nThe tracing log headers parsed by fw_log_print_buffer() reside in\nDMA-shared BOs that the NPU firmware can write to.\n\nfw_log_from_bo() validated log->header_size and log->size, but\nfw_log_print_buffer() re-read those same fields from shared memory\nafterwards, allowing a TOCTOU where firmware changes them between the\ncheck and the use, and making the host dereference out-of-bounds\naddresses while printing logs.\n\nSnapshot the validated values once with READ_ONCE() and pass them down\nexplicitly in a new struct ivpu_fw_log_desc instead of re-reading them\nfrom the shared struct.","state":0,"publishedAt":"2026-09-25T10:22:37.699+00:00","modifiedAt":"2026-10-21T12:53:35.648+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/accel/ivpu/ivpu_fw_log.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d4e4257afa6ed5205eda993180401fc2c20e4b60\",\n                            \"lessThan\": \"07d4190d75021c38b7994045179aa29131634d4f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d4e4257afa6ed5205eda993180401fc2c20e4b60\",\n                            \"lessThan\": \"8ec3d6972f1440fae6c8dadd1859892775208759\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d4e4257afa6ed5205eda993180401fc2c20e4b60\",\n                            \"lessThan\": \"40868f80a89199630b03d4457876f9a1feba0660\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d4e4257afa6ed5205eda993180401fc2c20e4b60\",\n                            \"lessThan\": \"b1555f63ee1a680f280bc18e8dac416f250e2ec3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d4e4257afa6ed5205eda993180401fc2c20e4b60\",\n                            \"lessThan\": \"0724afc55c77c36c7feb9a7264b02aa7593c5c2d\",\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/accel/ivpu/ivpu_fw_log.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/07d4190d75021c38b7994045179aa29131634d4f","https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759","https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660","https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3","https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97916","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97916","identifiers":["CVE-2026-97916"]},"retained":false,"historicalAffected":[]}],"coverage":[]}