{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72017","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-09T03:40:39.900Z","datePublished":"2026-08-15T05:51:44.698Z","dateUpdated":"2026-08-23T12:46:26.593Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-23T12:46:26.593Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: drop in-flight Tx SKBs on close\n\nThe MACB driver has since forever leaked the outgoing SKBs that\nhave not yet been marked as completed. They live in queue->tx_skb\nwhich gets freed without remorse nor checking.\n\nmacb_free_consistent() gets called in a few codepaths, but only close will\ntrigger the added expressions. In macb_open() and macb_alloc_consistent()\nfailure cases, queues' tx_skb just got allocated and are empty."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655","status":"affected","versionType":"git"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","status":"affected","versionType":"git"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","status":"affected","versionType":"git"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","status":"affected","versionType":"git"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","status":"affected","versionType":"git"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","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/cadence/macb_main.c"],"versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","status":"unaffected","versionType":"semver"},{"version":"6.1.184","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"2.6.20","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655"},{"url":"https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b"},{"url":"https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4"},{"url":"https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2"},{"url":"https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244"},{"url":"https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955"}],"title":"net: macb: drop in-flight Tx SKBs on close","x_generator":{"engine":"bippy-1.2.0"}}}}