{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80779","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.792Z","datePublished":"2026-09-04T15:12:51.103Z","dateUpdated":"2026-09-04T15:12:51.103Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-04T15:12:51.103Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/pensando/ionic/ionic_lif.c","drivers/net/ethernet/pensando/ionic/ionic_txrx.c"],"versions":[{"version":"8eeed8373e1cca836799bf8e4a05cffa8e444908","lessThan":"881a805a8029ba48c0ce81c6674910f8d83f7afb","status":"affected","versionType":"git"},{"version":"8eeed8373e1cca836799bf8e4a05cffa8e444908","lessThan":"39fc615e355b65b8d43be30da57aa95ae6eaf688","status":"affected","versionType":"git"},{"version":"8eeed8373e1cca836799bf8e4a05cffa8e444908","lessThan":"f3868046e8e2e761d4d943a232bd109ff22a7d5b","status":"affected","versionType":"git"},{"version":"8eeed8373e1cca836799bf8e4a05cffa8e444908","lessThan":"ea081b4435515ac7177eb598a3c0678d1b9e7911","status":"affected","versionType":"git"},{"version":"8eeed8373e1cca836799bf8e4a05cffa8e444908","lessThan":"d92255b405fb6f5acca408239ccd742e0a42c9cb","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/pensando/ionic/ionic_lif.c","drivers/net/ethernet/pensando/ionic/ionic_txrx.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.12.106","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.47","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.11","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2.1","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.106"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/881a805a8029ba48c0ce81c6674910f8d83f7afb"},{"url":"https://git.kernel.org/stable/c/39fc615e355b65b8d43be30da57aa95ae6eaf688"},{"url":"https://git.kernel.org/stable/c/f3868046e8e2e761d4d943a232bd109ff22a7d5b"},{"url":"https://git.kernel.org/stable/c/ea081b4435515ac7177eb598a3c0678d1b9e7911"},{"url":"https://git.kernel.org/stable/c/d92255b405fb6f5acca408239ccd742e0a42c9cb"}],"title":"net/ionic: avoid OOB TX partner lookup for hwstamp RXQ","x_generator":{"engine":"bippy-1.2.0"}}}}