{"id":"CVE-2026-72017","title":"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","summary":"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->t…","severity":"none","published":"2026-08-15","updated":"2026-08-23","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72017","references":[{"url":"https://git.kernel.org/stable/c/0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00206,"epssPercentile":0.10938,"ingestedAt":"2026-08-23T13:48:07.395Z","slug":"CVE-2026-72017","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}