{"id":"CVE-2026-98345","revision":"27fb6a2ec19b42f2830ebcd5babe4d5e","records":[{"revision":"27fb6a2ec19b42f2830ebcd5babe4d5e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98345","aliases":[],"title":"wifi: cfg80211: check IP header size in cfg80211_classify8021d()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: check IP header size in cfg80211_classify8021d()\n\nA frame that looks like IP can be transmitted, but be too short, so\nthe DS field is read incorrectly:\n\n  BUG: KMSAN: uninit-value in cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027\n   cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027\n   ieee80211_select_queue+0x37a/0x9e0 net/mac80211/wme.c:180\n   __ieee80211_subif_start_xmit+0x60f/0x1d90 net/mac80211/tx.c:4304\n   ieee80211_subif_start_xmit+0xa8/0x6d0 net/mac80211/tx.c:4538\n   ...\n   packet_sendmsg+0x9173/0xa2a0 net/packet/af_packet.c:3108\n\nUse skb_header_pointer() like the MPLS case.","state":0,"publishedAt":"2026-10-06T08:46:34.719+00:00","modifiedAt":"2026-10-19T09:17:56.221+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                        \"net/wireless/util.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"18d5547327c202cda33ad2bbd203220c2c62c8a7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"12c0abd4d1c1b04a7663d04ba85268bc9ad9c017\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"f33ad4e2f846e55cf4637419268f093ac9f1a765\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"a2cdb4a675ca04c4ac8cc962848082d8ce065008\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"65893c8d28f239c7ddad5a83683be193a9133e9b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e31a16d6f64ef0e324c6f54d5112703c3f13a9c4\",\n                            \"lessThan\": \"48b2c5c628b09cf36cbeca53e0432fc2a7518be7\",\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                        \"net/wireless/util.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.31\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.31\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\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/18d5547327c202cda33ad2bbd203220c2c62c8a7","https://git.kernel.org/stable/c/3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734","https://git.kernel.org/stable/c/c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7","https://git.kernel.org/stable/c/12c0abd4d1c1b04a7663d04ba85268bc9ad9c017","https://git.kernel.org/stable/c/f33ad4e2f846e55cf4637419268f093ac9f1a765","https://git.kernel.org/stable/c/a2cdb4a675ca04c4ac8cc962848082d8ce065008","https://git.kernel.org/stable/c/65893c8d28f239c7ddad5a83683be193a9133e9b","https://git.kernel.org/stable/c/48b2c5c628b09cf36cbeca53e0432fc2a7518be7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98345","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98345","identifiers":["CVE-2026-98345"]},"retained":false,"historicalAffected":[]}],"coverage":[]}