CVE-2026-98105: Linux kernel · net: ethernet: oa_tc6: Improve the error recovery
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 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
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 fix has been implemented in the Linux kernel to improve error recovery in the oa_tc6 ethernet driver. Users should apply the updated kernel versions that include this fix. Since this is a kernel-level fix, upgrading to patched kernel versions is the recommended remediation.
Description
A vulnerability in the Linux kernel's ethernet driver oa_tc6 related to error recovery during oversubscribed traffic has been resolved. The issue involved buffer overflow errors causing the driver to fail in locating valid data chunks, leading to assertion failures during skb_put operations. The fix improves error handling by checking buffer tailroom before accepting data and abandoning frames when insufficient space is detected. The rx_buf_overflow flag was renamed to wait_until_start_valid to better reflect its broader use in error recovery.
References
- ubuntu.com/security/CVE-2026-98105 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98105 (opens in a new tab)
- git.kernel.org/stable/c/d33003e752f25c385f2cf21964123582a44f6818 (opens in a new tab)
- git.kernel.org/stable/c/9d3f6e714d5f8b728837f31bbe865b64cfd3216a (opens in a new tab)
- git.kernel.org/stable/c/b89770d493749d7c3b8649996e1089719b4eff8d (opens in a new tab)
- git.kernel.org/stable/c/172c974113bffe5723b80b1acac17593bb50513c (opens in a new tab)