{"id":"CVE-2026-98948","summary":"mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: spectrum_flower: Fix port range register leak in tmplt_create()\n\nmlxsw_sp_flower_tmplt_create() parses a flow_cls_offload template\ninto a stack-local struct mlxsw_sp_acl_rule_info purely to compute\nrulei.values.elusage. Parsing can acquire port range registers via\nmlxsw_sp_flower_parse_ports_range(), but since this rulei never goes\nthrough mlxsw_sp_acl_rulei_destroy(), those registers were never\nreleased, including through chain template deletion.\n\nFactor out of mlxsw_sp_acl_rulei_destroy() the code to actually\nrelease the necessary resources and call from\nmlxsw_sp_flower_tmplt_create() to plug the leak.\n\nThe issue was found during a review of Wentao Liang's patch referenced\nbelow.","modified":"2026-10-25T02:47:28.600794347Z","published":"2026-10-23T12:19:08.043Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98948.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98948.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98948"},{"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":"fe22f7410527c2077223b5fd0fc0458db912f0db"},{"fixed":"41ad5bcf0219aaebf8ffb052c5e8177479330cde"},{"fixed":"c8e934287debb29c6ded86b21e49fc72e186d15e"},{"fixed":"3938430f0237c59ca08d6a366e7657b2b7f8d0bb"},{"fixed":"4eaf1285b5c1e42f80e47f9fe0d391e70418db02"},{"fixed":"7ea07afb230f1342ab0f9365edd0aae137f425d3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98948.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.160"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.113"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.57"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98948.json"}}],"schema_version":"1.9.2"}