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.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6238-1 linux security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 07 May 2026 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-459
CWE-755

Thu, 07 May 2026 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*

Tue, 28 Apr 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-459
CWE-755

Thu, 23 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title dmaengine: idxd: Fix leaking event log memory
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T22:08:44.846Z

Reserved: 2026-03-09T15:48:24.090Z

Link: CVE-2026-31440

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-04-22T14:16:37.390

Modified: 2026-05-07T19:31:26.847

Link: CVE-2026-31440

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-22T00:00:00Z

Links: CVE-2026-31440 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T22:30:36Z

Weaknesses