{"id":"CVE-2023-54240","summary":"net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()\n\nrule_locs is allocated in ethtool_get_rxnfc and the size is determined by\nrule_cnt from user space. So rule_cnt needs to be check before using\nrule_locs to avoid NULL pointer dereference.","modified":"2026-03-31T17:29:40.603026099Z","published":"2025-12-30T12:11:29.039Z","related":["SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54240.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54240.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54240"},{"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":"7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd"},{"fixed":"7776591e5ae2befff86579f68916a171971c6aab"},{"fixed":"751b2e22a188b0c306029d094da29b6b8de31430"},{"fixed":"653fbddbdfc6673bba01b13dae5a4384ad8f92ec"},{"fixed":"75f2de75c1182e80708c932418e4895dbc88b68f"},{"fixed":"072324cfab9b96071c0782f51f53cc5aea1e9d5b"},{"fixed":"ff5faed5f5487b0fd2b640ba1304f82a5ebaab42"},{"fixed":"fe0195fe48f85182bc7e7eabcad925bd3cbc10f5"},{"fixed":"e4c79810755f66c9a933ca810da2724133b1165a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54240.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.0"},{"fixed":"4.14.326"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.295"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.257"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.195"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.132"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.5.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54240.json"}}],"schema_version":"1.7.5"}