CVE-2026-22996: Linux kernel · net/mlx5e: Don't store mlx5e_priv in mlx5e_dev devlink priv
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 6.8.0-1057.60~22.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% 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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 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 from the vendor. Users should update their Linux kernel packages to the fixed versions as specified in the Ubuntu security advisories (e.g., linux-image-6.8.0-1055.56 and later) and reboot the system to apply the updates. Due to an ABI change, recompilation and reinstallation of any third-party kernel modules may be necessary. Follow the vendor's update instructions carefully.
Description
A vulnerability in the Linux kernel's mlx5e network driver was resolved that involved improper storage of the mlx5e_priv structure in mlx5e_dev devlink private data. This flaw could cause a kernel oops during profile changes in switchdev mode, leading to potential denial of service. The issue was fixed by changing how references to netdev and mdev are stored. The vulnerability has a CVSS score of 5.5 (medium severity) and affects multiple Linux kernel versions prior to 6.8.0-1055.56 and related builds. A patch is available and users are advised to update and reboot to apply the fix. The vendor advisory confirms the fix and provides updated package versions for Ubuntu Linux kernels.
References
- ubuntu.com/security/CVE-2026-22996 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-22996 (opens in a new tab)
- git.kernel.org/linus/123eda2e5b1638e298e3a66bb1e64a8da92de5e1 (opens in a new tab)
- git.kernel.org/stable/c/123eda2e5b1638e298e3a66bb1e64a8da92de5e1 (opens in a new tab)
- git.kernel.org/stable/c/a3d4f87d41f5140f1cf5c02fce5cdad2637f6244 (opens in a new tab)
- git.kernel.org/stable/c/dcb2ad755a16cb0ecd2dc98234d71a6e216ae7fe (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)