CVE-2026-98351: Linux kernel · wifi: virt_wifi: free skb when disconnected
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:28 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 6 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: free skb when disconnected When the simulated link is disconnected, virt_wifi_start_xmit() returns NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this return value as consumed, so every packet sent while disconnected leaks its skb. Free the skb before returning the drop status.
References
- ubuntu.com/security/CVE-2026-98351 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98351 (opens in a new tab)
- git.kernel.org/linus/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e (opens in a new tab)
- git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34 (opens in a new tab)
- git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e (opens in a new tab)
- git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b (opens in a new tab)
- git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06 (opens in a new tab)
- git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51 (opens in a new tab)
- git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a (opens in a new tab)
- git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a (opens in a new tab)
- git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e (opens in a new tab)