Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix leaking event log memory During the device remove process, the device is reset, causing the configuration registers to go back to their default state, which is zero. As the driver is checking if the event log support was enabled before deallocating, it will fail if a reset happened before. Do not check if the support was enabled, the check for 'idxd->evl' being valid (only allocated if the HW capability is available) is enough.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.4, < 6.12.80 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/695b491dc3f20365fd5821f22e25dbe3c1c20cbc
- https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92ePatch
- https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0Patch
- https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0fPatch
- https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564ePatch
FAQ
What is CVE-2026-31440?
CVE-2026-31440 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix leaking event log memory During the device remove process, the device is reset, causing the configuration reg...
How severe is CVE-2026-31440?
CVE-2026-31440 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31440?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.