CVE-2025-68176: Linux kernel · PCI: cadence: Check for the existence of cdns_pcie::ops before using it cdns_pcie::ops
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1103.110~20.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- 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 5.15.0-1103.110~20.04.1, 5.15.0-1110.119~20.04.1, 5.15.0-1114.123~20.04.1 +70
Exploitation evidence
Disclosed: evidence found.
CVE published 16 Dec 2025
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?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle?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 kernel versions. Users should update to the fixed kernel releases to remediate this vulnerability. The vendor advisory confirms that this issue is fixed in the specified kernel versions.
Description
A vulnerability in the Linux kernel's PCI Cadence driver was resolved by adding a check for the existence of cdns_pcie::ops before using it. This prevents a NULL pointer dereference that could occur because not all Cadence glue drivers populate this ops structure, notably the upcoming Sophgo platform. The issue affects certain Linux kernel versions prior to specific patched releases. The vulnerability is rated medium severity and has been fixed in updated kernel versions.
References
- ubuntu.com/security/CVE-2025-68176 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68176 (opens in a new tab)
- git.kernel.org/linus/49a6c160ad4812476f8ae1a8f4ed6d15adfa6c09 (opens in a new tab)
- git.kernel.org/stable/c/0d0bb756f002810d249caee51f3f1c309f3cdab5 (opens in a new tab)
- git.kernel.org/stable/c/1810b2fd7375de88a74976dcd402b29088e479ed (opens in a new tab)
- git.kernel.org/stable/c/363448d069e29685ca37a118065121e486387af3 (opens in a new tab)
- git.kernel.org/stable/c/49a6c160ad4812476f8ae1a8f4ed6d15adfa6c09 (opens in a new tab)
- git.kernel.org/stable/c/953eb3796ef06b8ea3bf6bdde14156255bc75866 (opens in a new tab)
- git.kernel.org/stable/c/d5dbe92ac8a4ca6226093241f95f9cb1b0d2e0e1 (opens in a new tab)
- git.kernel.org/stable/c/eb3d29ca0820fa3d7cccad47d2da56c9ab5469ed (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8030-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8048-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8095-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8100-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8095-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-2 (opens in a new tab)