{"id":"CVE-2026-99026","revision":"84c127cc9c8a4d629cb41cb5c26eddc3","records":[{"revision":"84c127cc9c8a4d629cb41cb5c26eddc3","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-99026","aliases":[],"title":"net: team: free skb when broadcast has no txable port","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: team: free skb when broadcast has no txable port\n\nbc_transmit() sends the original skb through the last txable port.\nWhen no port is txable, it returns false without consuming the skb, but\nteam_xmit() still returns NETDEV_TX_OK. AF_PACKET sends then retain the\nskb and its socket write-memory charge.\n\nA TX-enabled, link-down port keeps the broadcast transmit op installed.\nCarrier can stay up through a second link-up, TX-disabled port or be\nforced on by userspace. Free the original skb on the no-port path while\nleaving the existing drop accounting intact.\n\nDiscovered by Sashiko during review of previous commit.","state":0,"publishedAt":"2026-10-23T12:21:13.509+00:00","modifiedAt":"2026-10-23T12:21:13.509+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/team/team_mode_broadcast.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5fc889911a99043a97da1daa0d010ad72cbc3042\",\n                            \"lessThan\": \"961563117626f4681623077ec0cfd86f86da0d49\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fc889911a99043a97da1daa0d010ad72cbc3042\",\n                            \"lessThan\": \"f34b1bcac4581a5bd3daf9eff90f175e736b54aa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fc889911a99043a97da1daa0d010ad72cbc3042\",\n                            \"lessThan\": \"489114c9ecae44e523361a4b3e610ee5ebd9189c\",\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/team/team_mode_broadcast.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.11\",\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/961563117626f4681623077ec0cfd86f86da0d49","https://git.kernel.org/stable/c/f34b1bcac4581a5bd3daf9eff90f175e736b54aa","https://git.kernel.org/stable/c/489114c9ecae44e523361a4b3e610ee5ebd9189c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99026","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99026","identifiers":["CVE-2026-99026"]},"retained":false,"historicalAffected":[]}],"coverage":[]}