CVE-2026-80609

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into adjacent completion-descriptor memory before the bound check, and the same malformed CQE drives qede_fill_frag_skb() with attacker-influenced lengths that can leak uninitialized RX-ring/page data up the network stack.\nI:H - Extra qede_fill_frag_skb() iterations advance frag_id without MAX_SKB_FRAGS limits and consume RX BDs using firmware-supplied lengths, enabling controllable skb shared-info and RX-ring corruption exploitable for arbitrary kernel writes.\nA:H - Corrupted skb fragment metadata and desynchronized RX BD consumption reliably trigger kernel oops/panic or wedged RX processing in softirq, and the condition is remotely repeatable for sustained denial of service."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ecbb12caf399d7cf364b7553ed5aebeaa2f255bc", "lessThan": "6d203bdd227fca1787f8a80cf84b990936633c5a", "versionType": "git"}, 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"options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T19:18:42.466773Z", "version": "2.0.3"}}]}, "published": "2026-08-28T08:16:44.870", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1aacefd074b5dcc99b8dbcd73e1c963ed5010110"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d203bdd227fca1787f8a80cf84b990936633c5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d46ab395803f162cdc50e8d346e5f1a4e766771"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b17751a2ebc4aef3ce6be6f71ee8df92bf5ddfcd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd3a6a083b408e96437dbd86ff543ba9ec3a788b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e30af53dca803893a29eb3bbe0539752ba435410"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f9ba47fce5932c15891c89c60e76dfaca919cb8d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: qede: fix out-of-bounds check for cqe->len_list[]", "id": "2525485", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525485"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nqede: fix out-of-bounds check for cqe->len_list[]\nMove index check before element access.", "A flaw was found in the `qede` driver of the Linux kernel. An out-of-bounds read vulnerability exists due to an incorrect index check for `cqe->len_list[]` before element access. This flaw could potentially allow an attacker to cause a denial of service or disclose sensitive information."], "name": "CVE-2026-80609", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80609\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80609\nhttps://lore.kernel.org/linux-cve-announce/2026082833-CVE-2026-80609-3507@gregkh/T"], "threat_severity": "Moderate"}

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