CVE-2026-31443 Details
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix crash when the event log is disabled If reporting errors to the event log is not supported by the hardware, and an error that causes Function Level Reset (FLR) is received, the driver will try to restore the event log even if it was not allocated. Also, only try to free the event log if it was properly allocated.
A vulnerability in the Linux kernel's DMA engine IDXD driver can lead to a crash when the event log is disabled. This issue occurs if the hardware does not support error reporting to the event log, and an error requiring a Function Level Reset (FLR) is received. In such cases, the driver attempts to restore the event log, even if it was not previously allocated, leading to a potential crash. The problem has been addressed by ensuring that the driver only tries to free the event log if it was properly allocated.
Users can apply the latest patches available in the Linux kernel stable tree to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0e761079d653c25f838380cf7cef2730832110cc | kernel.org | Patch |
| https://git.kernel.org/stable/c/52d2edea0d63c935e82631e4b9e4a94eccf97b5b | kernel.org | Patch |
| https://git.kernel.org/stable/c/aa0ffc6d3990ec35976308a068dc23178037e564 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.14, < 6.18.21 >= 6.19, < 6.19.11 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 7, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | New CVE Received | kernel.org |