{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-98145","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-09-25T11:17:46.043","lastModified":"2026-10-26T18:12:15.297","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: reject a command chain that carries no commands\n\nA chain whose command_count is zero passes the payload length check,\nbecause struct_size(payload, data, 0) is just the header. The fill loop\nthen does not run, so offset stays zero and the request is submitted with\na zero-length buffer.\n\nOn firmware without AIE2_NPU_COMMAND that ends at the opcode check, since\nop is still ERT_INVALID_CMD and aie2_get_chain_msg_op() answers\nMSG_OP_MAX_OPCODE. aie2_get_npu_chain_msg_op() answers\nMSG_OP_CHAIN_EXEC_NPU whatever it is given, so there the submission\ncontinues to drm_clflush_virt_range(cmd_buf, 0), which reads the byte\nbefore the buffer and faults on the vmap guard page. EXEC_CMD is\nreachable by any process that can open the render node.\n\nReject the request instead."}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/accel/amdxdna/aie2_message.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"8ed8b02396172b137ca8c78c3cb999ddf4fb0bbf","lessThan":"ed74e8d603df457bfcf16ed4f8f1660a1525759e","versionType":"git","status":"affected"},{"version":"8ed8b02396172b137ca8c78c3cb999ddf4fb0bbf","lessThan":"ef6d27af71e1dc43181ec797a6aaa77c27c36786","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/accel/amdxdna/aie2_message.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"7.1","status":"affected"},{"version":"0","lessThan":"7.1","versionType":"semver","status":"unaffected"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","versionType":"semver","status":"unaffected"},{"version":"7.3","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-125"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.2.7","matchCriteriaId":"14D603E7-156F-4FD7-926F-F8D893FBAD60"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:*","matchCriteriaId":"11E35E1B-5DB4-4AB9-9706-CD73B799EADF"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ed74e8d603df457bfcf16ed4f8f1660a1525759e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ef6d27af71e1dc43181ec797a6aaa77c27c36786","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}