{"id":"CVE-2026-80779","revision":"4f2abeba5ddc4064a3355158148f6111","records":[{"revision":"4f2abeba5ddc4064a3355158148f6111","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80779","aliases":[],"title":"net/ionic: avoid OOB TX partner lookup for hwstamp RXQ","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ionic: avoid OOB TX partner lookup for hwstamp RXQ\n\nThe dedicated hardware timestamp RX queue is allocated with q->index\nequal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only\ncontains the regular queue pairs, so using that index to set rxq->partner\ncan read one entry past txqcqs[] and then write through the derived\npointer.\nOnly link RX/TX partners for normal queue-pair indexes. Leave the hwstamp\nRX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue\nhas no TX partner.","state":0,"publishedAt":"2026-09-04T15:12:51.103+00:00","modifiedAt":"2026-10-19T08:43:34.624+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/pensando/ionic/ionic_lif.c\",\n                        \"drivers/net/ethernet/pensando/ionic/ionic_txrx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"8eeed8373e1cca836799bf8e4a05cffa8e444908\",\n                            \"lessThan\": \"881a805a8029ba48c0ce81c6674910f8d83f7afb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8eeed8373e1cca836799bf8e4a05cffa8e444908\",\n                            \"lessThan\": \"39fc615e355b65b8d43be30da57aa95ae6eaf688\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8eeed8373e1cca836799bf8e4a05cffa8e444908\",\n                            \"lessThan\": \"f3868046e8e2e761d4d943a232bd109ff22a7d5b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8eeed8373e1cca836799bf8e4a05cffa8e444908\",\n                            \"lessThan\": \"ea081b4435515ac7177eb598a3c0678d1b9e7911\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8eeed8373e1cca836799bf8e4a05cffa8e444908\",\n                            \"lessThan\": \"d92255b405fb6f5acca408239ccd742e0a42c9cb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/pensando/ionic/ionic_lif.c\",\n                        \"drivers/net/ethernet/pensando/ionic/ionic_txrx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.106\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.47\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.11\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.1\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/881a805a8029ba48c0ce81c6674910f8d83f7afb","https://git.kernel.org/stable/c/39fc615e355b65b8d43be30da57aa95ae6eaf688","https://git.kernel.org/stable/c/f3868046e8e2e761d4d943a232bd109ff22a7d5b","https://git.kernel.org/stable/c/ea081b4435515ac7177eb598a3c0678d1b9e7911","https://git.kernel.org/stable/c/d92255b405fb6f5acca408239ccd742e0a42c9cb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80779","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80779","identifiers":["CVE-2026-80779"]},"retained":false,"historicalAffected":[]}],"coverage":[]}