CVE-2026-98810: Linux kernel · wifi: mac80211: fix slab-out-of-bounds read in ieee80211_monitor_select_queue()
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to 63e7064b4c1c4b540bf2f0cba47384f92ab95307 or 6f63e919fe1e335b8abcb3a28bfd4804a98d875a soon.
Data as of 26 Oct 2026, 17:16 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 63e7064b4c1c4b540bf2f0cba47384f92ab95307, 6f63e919fe1e335b8abcb3a28bfd4804a98d875a
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to 63e7064b4c1c4b540bf2f0cba47384f92ab95307 or 6f63e919fe1e335b8abcb3a28bfd4804a98d875a.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel commits 63e7064b4c1c4b540bf2f0cba47384f92ab95307 and 6f63e919fe1e335b8abcb3a28bfd4804a98d875a. Users and administrators should update to a Linux kernel version that includes these commits to remediate the vulnerability.
Description
A slab-out-of-bounds read vulnerability exists in the Linux kernel's mac80211 wifi subsystem in the ieee80211_monitor_select_queue() function. The flaw arises because the function validates packet length using skb->len, which includes non-linear fragments, but then dereferences pointers assuming linear data, potentially reading beyond the allocated buffer. This issue also affects ieee80211_validate_radiotap_len() and ieee80211_monitor_start_xmit() functions. The vulnerability has been fixed by checking the linear data length instead of the total skb length before accessing skb->data pointers.