{"id":"CVE-2026-97916","published":"2026-09-25T11:17:18.593","lastModified":"2026-09-25T11:17:18.593","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d","tags":[]},{"url":"https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660","tags":[]},{"url":"https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759","tags":[]},{"url":"https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}