{"id":"CVE-2026-72017","summary":"net: macb: drop in-flight Tx SKBs on close","details":"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-\u003etx_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.","modified":"2026-08-25T03:51:29.792149568Z","published":"2026-08-15T05:51:44.698Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72017.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655"},{"type":"WEB","url":"https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72017.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72017"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"89e5785fc8a6b9eafd37f2318a9a76d479c796be"},{"fixed":"0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655"},{"fixed":"6124bd785073659c99385094657b77382ebce11b"},{"fixed":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4"},{"fixed":"26b131b2d5b55a81ef6182769d28105a870c0eb2"},{"fixed":"109241d9880488aafd8e104832b4d4859ad57244"},{"fixed":"27f575836cfebbf872dec020428742b10650a955"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72017.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.20"},{"fixed":"6.1.184"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72017.json"}}],"schema_version":"1.9.0"}