{"id":"CVE-2026-98182","published":"2026-10-06T09:18:02.967","lastModified":"2026-10-06T09:18:02.967","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2b04d6556964ae9f89819b86a0a7801e39c3aae5","tags":[]},{"url":"https://git.kernel.org/stable/c/46c223468537a05a404699771cd3e68532dab5e6","tags":[]},{"url":"https://git.kernel.org/stable/c/abe15e643e576459469867758ae9c586a7bab95d","tags":[]},{"url":"https://git.kernel.org/stable/c/b7b7d46ec4fa127767931938b282c361c0519af6","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}