CVE-2026-98182

wifi: mac80211: refuse to make a monitor active when it has no queue

CVE-2026-98182 is fixed in 37 products on 1 platform, first by DEBIAN-CVE-2026-98182, released October 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: refuse to make a monitor active when it has no queue A monitor interface only gets a TXQ if it's created active, and one can't be added later. Setting the flag on a down interface is still allowed, so the driver is handed a monitor with no queue. ath9k dereferences it: BUG: kernel NULL pointer dereference, address: 0000000000000066 RIP: 0010:ath_tx_node_init+0x49/0x170 [ath9k] ath9k_add_interface+0x10c/0x140 [ath9k] drv_add_interface+0x54/0x250 [mac80211] ieee80211_do_open+0x32f/0x800 [mac80211] Reached with CAP_NET_ADMIN by "iw dev X set monitor active" followed by "ip link set X up". RTNL is held, so netlink operations block behind it. Refuse the flag when there is no queue to give.

Where it's fixed

ProductFixed inFixReleased
Linux
kernel-uek · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-devel · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-devel · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-devel · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-devel · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-doc · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-doc · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-deprecated · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-deprecated · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-desktop · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-desktop · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-extra · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-extra · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-usb · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-usb · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-wireless · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-modules-wireless · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-tools · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek-tools · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-devel · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-devel · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-core · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-core · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-extra · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-extra · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-usb · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-usb · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-208.112.5.el9uek ELSA-2026-500572 Nov 7, 2026
linux · Debian 13.5 (trixie) 6.12.113-1 DEBIAN-CVE-2026-98182 Oct 6, 2026
linux · Debian 14 7.2.8-1 DEBIAN-CVE-2026-98182 Oct 6, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.113-1~deb12u1 DEBIAN-CVE-2026-98182 Oct 6, 2026

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