{"id":"CVE-2026-98182","title":"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","summary":"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 …","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 79af1f866193de29e65a4dba7d0dab14b0c0ff93 < b7b7d46ec4fa127767931938b282c361c0519af6","Linux >= 79af1f866193de29e65a4dba7d0dab14b0c0ff93 < abe15e643e576459469867758ae9c586a7bab95d","Linux >= 79af1f866193de29e65a4dba7d0dab14b0c0ff93 < 46c223468537a05a404699771cd3e68532dab5e6","Linux >= 79af1f866193de29e65a4dba7d0dab14b0c0ff93 < 2b04d6556964ae9f89819b86a0a7801e39c3aae5","Linux 4.15"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:02.967","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98182","references":[{"url":"https://git.kernel.org/stable/c/2b04d6556964ae9f89819b86a0a7801e39c3aae5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/46c223468537a05a404699771cd3e68532dab5e6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/abe15e643e576459469867758ae9c586a7bab95d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b7b7d46ec4fa127767931938b282c361c0519af6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98182.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98182"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546359"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98182"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98182"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98182.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-06T08:50:17.451Z","epss":0.00168,"epssPercentile":0.0604,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"slug":"CVE-2026-98182","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98182.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224137,"id":"CVE-2026-98182","ts":1792324955713,"field":"cvss","old":null,"new":"5.5"},{"seq":224136,"id":"CVE-2026-98182","ts":1792324955713,"field":"severity","old":"none","new":"medium"}]}