{"id":"CVE-2026-97916","summary":"accel/ivpu: Validate firmware log buffer metadata","details":"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-\u003eheader_size and log-\u003esize, 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.","modified":"2026-09-27T03:47:38.962155479Z","published":"2026-09-25T10:22:37.699Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97916.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97916.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97916"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d4e4257afa6ed5205eda993180401fc2c20e4b60"},{"fixed":"8ec3d6972f1440fae6c8dadd1859892775208759"},{"fixed":"40868f80a89199630b03d4457876f9a1feba0660"},{"fixed":"b1555f63ee1a680f280bc18e8dac416f250e2ec3"},{"fixed":"0724afc55c77c36c7feb9a7264b02aa7593c5c2d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97916.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97916.json"}}],"schema_version":"1.9.0"}