CVE-2026-98182
- Source
- https://cve.org/CVERecord?id=CVE-2026-98182
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98182.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98182
- Downstream
- Published
- 2026-10-06T08:44:25Z
- Modified
- 2026-10-08T02:52:52Z
- Summary
- wifi: mac80211: refuse to make a monitor active when it has no queue
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98182.json" }- References
-
- https://git.kernel.org/stable/c/2b04d6556964ae9f89819b86a0a7801e39c3aae5
- https://git.kernel.org/stable/c/46c223468537a05a404699771cd3e68532dab5e6
- https://git.kernel.org/stable/c/abe15e643e576459469867758ae9c586a7bab95d
- https://git.kernel.org/stable/c/b7b7d46ec4fa127767931938b282c361c0519af6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98182.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98182
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced79af1f866193de29e65a4dba7d0dab14b0c0ff93Fixedb7b7d46ec4fa127767931938b282c361c0519af6Fixedabe15e643e576459469867758ae9c586a7bab95dFixed46c223468537a05a404699771cd3e68532dab5e6Fixed2b04d6556964ae9f89819b86a0a7801e39c3aae5