{"id":"AZL-77229","summary":"CVE-2026-23098 affecting package kernel for versions less than 6.6.126.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: fix double-free in nr_route_frame()\n\nIn nr_route_frame(), old_skb is immediately freed without checking if\nnr_neigh-\u003eax25 pointer is NULL. Therefore, if nr_neigh-\u003eax25 is NULL,\nthe caller function will free old_skb again, causing a double-free bug.\n\nTherefore, to prevent this, we need to modify it to check whether\nnr_neigh-\u003eax25 is NULL before freeing old_skb.","modified":"2026-08-28T17:48:02.026721833Z","published":"2026-02-04T17:16:20Z","upstream":["CVE-2026-23098"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23098"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.126.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77229.json"}}],"schema_version":"1.9.0"}