{"id":"CVE-2026-98182","revision":"915e58c73e3549f899e21bff9942d969","records":[{"revision":"915e58c73e3549f899e21bff9942d969","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98182","aliases":[],"title":"wifi: mac80211: refuse to make a monitor active when it has no queue","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: refuse to make a monitor active when it has no queue\n\nA monitor interface only gets a TXQ if it's created active, and one can't\nbe added later. Setting the flag on a down interface is still allowed, so\nthe driver is handed a monitor with no queue. ath9k dereferences it:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000066\n  RIP: 0010:ath_tx_node_init+0x49/0x170 [ath9k]\n   ath9k_add_interface+0x10c/0x140 [ath9k]\n   drv_add_interface+0x54/0x250 [mac80211]\n   ieee80211_do_open+0x32f/0x800 [mac80211]\n\nReached with CAP_NET_ADMIN by \"iw dev X set monitor active\" followed by\n\"ip link set X up\". RTNL is held, so netlink operations block behind it.\n\nRefuse the flag when there is no queue to give.","state":0,"publishedAt":"2026-10-06T08:44:25.219+00:00","modifiedAt":"2026-10-19T09:15:13.449+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/mac80211/cfg.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"79af1f866193de29e65a4dba7d0dab14b0c0ff93\",\n                            \"lessThan\": \"b7b7d46ec4fa127767931938b282c361c0519af6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"79af1f866193de29e65a4dba7d0dab14b0c0ff93\",\n                            \"lessThan\": \"abe15e643e576459469867758ae9c586a7bab95d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"79af1f866193de29e65a4dba7d0dab14b0c0ff93\",\n                            \"lessThan\": \"46c223468537a05a404699771cd3e68532dab5e6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"79af1f866193de29e65a4dba7d0dab14b0c0ff93\",\n                            \"lessThan\": \"2b04d6556964ae9f89819b86a0a7801e39c3aae5\",\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/mac80211/cfg.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.15\",\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/b7b7d46ec4fa127767931938b282c361c0519af6","https://git.kernel.org/stable/c/abe15e643e576459469867758ae9c586a7bab95d","https://git.kernel.org/stable/c/46c223468537a05a404699771cd3e68532dab5e6","https://git.kernel.org/stable/c/2b04d6556964ae9f89819b86a0a7801e39c3aae5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98182","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98182","identifiers":["CVE-2026-98182"]},"retained":false,"historicalAffected":[]}],"coverage":[]}