CVE-2026-80885: Linux kernel · afs: Fix uncancelled rxrpc OOB message handler
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 7.0.0-1014.14~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1014.14~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +11
Exploitation evidence
Disclosed: evidence found.
CVE published 4 Sep 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 to a fixed release listed under Affected software.
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.
AI-suggested
A patch is available and should be applied to affected Linux kernel versions. The vendor advisory confirms that this issue has been fixed. Users should update to the fixed kernel versions to mitigate this vulnerability. No additional mitigation actions are specified or required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's AFS component related to uncancelled rxrpc out-of-band (OOB) message handling has been resolved. The fix involves cancelling OOB message processing properly and moving this processing to a work queue to ensure it is waited for. The OOB handler now returns immediately if the network namespace is no longer active. This issue affects specific Linux kernel versions used in the linux-hwe-edge product line. The vulnerability is rated medium severity and has been patched.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80885 (opens in a new tab)
- git.kernel.org/stable/c/231414253b648b3518b56f09710b831945d6a2fc (opens in a new tab)
- git.kernel.org/stable/c/a4057e58b07005d0fe0491bdbf1868c1491909ee (opens in a new tab)
- git.kernel.org/stable/c/d14e96ddd616c8a9fff3b5bab3bf4af0cfc30ec4 (opens in a new tab)
- ubuntu.com/security/CVE-2026-80885 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80885 (opens in a new tab)
- git.kernel.org/linus/a4057e58b07005d0fe0491bdbf1868c1491909ee (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)