{"schema":"threatline.record/2","record":{"id":"CVE-2026-98272","aliases":[],"summary":"net: mvpp2: prevent buffer overflow in page_pool allocation","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mvpp2: prevent buffer overflow in page_pool allocation\n\nThe per‑processor buffering scheme is supported only if the\nnumber of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS (8).\nThis is already checked in mvpp2_probe() during the initial\nactivation of percpu_pools.\n\nHowever, mvpp2_change_mtu() may later call\nmvpp2_bm_switch_buffers(priv, true) without this check, which can\nlead to an out-of-bounds access in the priv->page_pool array in\nmvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ\nentries, and mvpp2_get_nrxqs() may return exactly that value. The\nper-CPU scheme then doubles it to nrxqs * 2, exceeding the array\nbounds.\n\nCheck that the hardware version is MVPP22 or newer and that the\nnumber of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS\nbefore switching to per-CPU mode.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"dfd46b5584a5881b131008767950e1ab82713c8c","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"e7f30dcfa6c64033bf9137362517bd248e5be384","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"f0e7d62c1eb984dd204095118973c59604144cd8","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"1734c3fc0066e228ce1c11e434b7c2527f0a949a","status":"affected","versionType":"git"},{"version":"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f","lessThan":"14cb1e7702e5cb3c58888f6aed498381a73927d2","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","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":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","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-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"1734c3fc0066e228ce1c11e434b7c2527f0a949a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","source_modified_at":"2026-10-19T09:16:44.017Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"14cb1e7702e5cb3c58888f6aed498381a73927d2","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00203,"percentile":0.0981,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:45:33.974Z","modified_at":"2026-10-19T09:16:44.017Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98272","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:16:44.017Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98272","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/5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/dfd46b5584a5881b131008767950e1ab82713c8c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e7f30dcfa6c64033bf9137362517bd248e5be384"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f0e7d62c1eb984dd204095118973c59604144cd8"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/1734c3fc0066e228ce1c11e434b7c2527f0a949a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/14cb1e7702e5cb3c58888f6aed498381a73927d2"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:16:44.017Z","content_hash":"02d602c58a3cff75ba4fa2a66ca0c155fe3153e8babbc55fe7cdc45ba935657d"}}