CVE-2026-23035: Linux kernel · net/mlx5e: Pass netdev to mlx5e_destroy_netdev instead of priv
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 6.8.0-1057.60~22.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1057.60~22.04.1, 6.8.0-1059.65~22.04.1, 6.8.0-1060.63~22.04.1 +27
Exploitation evidence
Disclosed: evidence found.
CVE published 31 Jan 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 25.10linuxpkg:deb/ubuntu/linux@6.17.0-40.40?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1019.19?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1020.20?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp@6.17.0-1020.22?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1018.18?arch=source&distro=questingOther 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 included in updated linux-hwe-edge kernel packages for Ubuntu 22.04 LTS and related releases. Users should update their systems to the fixed kernel versions listed in the vendor advisory and reboot to apply the changes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required. No additional mitigation is necessary beyond applying the official update.
Description
A vulnerability in the Linux kernel's mlx5e network driver was resolved by changing the way netdev is passed to the mlx5e_destroy_netdev function. The previous method used an unstable structure that could be zeroed out if profile attaching failed, causing kernel oops during device removal. This fix ensures proper handling of resources during failure scenarios. The issue is part of a broader set of Linux kernel security fixes addressing multiple subsystems. The vulnerability affects certain versions of the linux-hwe-edge kernel prior to 6.8.0-1055.56 and related versions. A patch is available and users are advised to update to fixed kernel versions and reboot. The severity of this vulnerability is assessed as medium.
References
- ubuntu.com/security/CVE-2026-23035 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-23035 (opens in a new tab)
- git.kernel.org/linus/4ef8512e1427111f7ba92b4a847d181ff0aeec42 (opens in a new tab)
- git.kernel.org/stable/c/4ef8512e1427111f7ba92b4a847d181ff0aeec42 (opens in a new tab)
- git.kernel.org/stable/c/66a25f6b7c0bfd84e6d27b536f5d24116dbd52da (opens in a new tab)
- git.kernel.org/stable/c/a7625bacaa8c8c2bfcde6dd6d1397bd63ad82b02 (opens in a new tab)
- ubuntu.com/security/notices/USN-8278-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8289-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8296-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8296-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8289-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8278-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8393-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8440-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8499-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8570-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8594-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8604-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8605-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8570-2 (opens in a new tab)