CVE-2025-71195: Linux kernel · dmaengine: xilinx: xdma: Fix regmap max_register
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, 17:16 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% 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, 6.8.0-1058.65~22.04.1 +37
Exploitation evidence
Disclosed: evidence found.
CVE published 4 Feb 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?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 has been released in updated Linux kernel packages. Users should apply the vendor-provided updates and reboot their systems to ensure the fix is active. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required. Follow vendor instructions for updating and rebuilding kernel modules as needed.
Description
A vulnerability in the Linux kernel's dmaengine subsystem for the Xilinx XDMA driver was fixed. The issue involved incorrect assignment of the max_register field in the regmap configuration, which caused reading from the regmap via debugfs to potentially trigger a kernel segmentation fault. This could lead to system instability or crashes. The vulnerability affects multiple Linux kernel versions prior to 6.8.0-1055.56 and related builds. A patch is available and included in updated Linux kernel packages. Users should update and reboot to apply the fix.
References
- ubuntu.com/security/CVE-2025-71195 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-71195 (opens in a new tab)
- git.kernel.org/linus/c7d436a6c1a274c1ac28d5fb3b8eb8f03b6d0e10 (opens in a new tab)
- git.kernel.org/stable/c/5e7ad329d259cf5bed7530d6d2525bcf7cb487a1 (opens in a new tab)
- git.kernel.org/stable/c/606ea969e78295407f4bf06aa0e272fe59897184 (opens in a new tab)
- git.kernel.org/stable/c/c7d436a6c1a274c1ac28d5fb3b8eb8f03b6d0e10 (opens in a new tab)
- git.kernel.org/stable/c/df8a131a41ff6202d47f59452735787f2b71dd2d (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)