{"schema":"threatline.record/2","record":{"id":"CVE-2026-97957","aliases":[],"summary":"net: hinic: fix mailbox segment buffer overflow","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hinic: fix mailbox segment buffer overflow\n\ncheck_mbox_seq_id_and_seg_len() validates that seq_id does not\nexceed SEQ_ID_MAX_VAL (42) and seg_len does not exceed\nMBOX_SEG_LEN (48).  However, this allows the last segment\n(seq_id=42) to carry a full 48-byte payload, writing to offset\n42*48=2016 for 48 bytes (ending at byte 2064).  The receive\nbuffer is only MBOX_MAX_BUF_SZ (2048) bytes, resulting in a\n16-byte heap buffer overflow.\n\nThe hinic3 driver already handles this correctly by defining\nMBOX_LAST_SEG_MAX_LEN and rejecting the last segment when it\nexceeds the remaining buffer space.  Apply the same fix to the\nhinic driver.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"7cc974799fde846eda2d8f00ad4f8e1810eb0499","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"8de1e23bd91fe3a6683e4bc574e2d6bcb0eef920","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"72be1fd5d256dde748c0905c5e1749a119cad5bd","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"c622bbc212207d7c6bbd69dd88f0c3a3f5853d16","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"eca54a092d5f7b497b458ff5a6f66d4f7bfb6674","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"9f6ad383901d0cb1c8ea5f7f3160fabfe1540eb5","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"513f7b16ed0cffae9348151c72bed17c7073096f","status":"affected","versionType":"git"},{"version":"a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c","lessThan":"5d4d985957434867bbe85e4fa5e638f3e48ad522","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7cc974799fde846eda2d8f00ad4f8e1810eb0499","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"8de1e23bd91fe3a6683e4bc574e2d6bcb0eef920","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"72be1fd5d256dde748c0905c5e1749a119cad5bd","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"9f6ad383901d0cb1c8ea5f7f3160fabfe1540eb5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"513f7b16ed0cffae9348151c72bed17c7073096f","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","source_modified_at":"2026-10-19T09:11:23.333Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5d4d985957434867bbe85e4fa5e638f3e48ad522","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00142,"percentile":0.03242,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:03.153Z","modified_at":"2026-10-19T09:11:23.333Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97957","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:11:23.333Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97957","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/7cc974799fde846eda2d8f00ad4f8e1810eb0499"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/8de1e23bd91fe3a6683e4bc574e2d6bcb0eef920"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/72be1fd5d256dde748c0905c5e1749a119cad5bd"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c622bbc212207d7c6bbd69dd88f0c3a3f5853d16"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/eca54a092d5f7b497b458ff5a6f66d4f7bfb6674"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9f6ad383901d0cb1c8ea5f7f3160fabfe1540eb5"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/513f7b16ed0cffae9348151c72bed17c7073096f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5d4d985957434867bbe85e4fa5e638f3e48ad522"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:11:23.333Z","content_hash":"64cb3b77c1e93a3e373a7b2369691281d5b70a0ebdcb1d5466465f40f4c5147d"}}