Medium 5.5Published Apr 22, 2026

CVE-2026-31440dmaengine: idxd: Fix leaking event log memory

Updated under an hour ago (Oct 27, 2026, 5:23 AM ET)

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Exploited in the last 30 days

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: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: May 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 244da66cda359227d80ccb41dbcb99da40eae186 before 695b491dc3f20365fd5821f22e25dbe3c1c20cbc; from 244da66cda359227d80ccb41dbcb99da40eae186 before d94f9b0ba28a205caf95902ee88b42bdb8af83d0; from 244da66cda359227d80ccb41dbcb99da40eae186 before facd0012708e942fc12890708738aebde497564e; 244da66cda359227d80ccb41dbcb99da40eae186 builds before 9dfa00967e6ef43a9dd0887fe5c3a721a39da92e; from 244da66cda359227d80ccb41dbcb99da40eae186 before ee66bc29578391c9b48523dc9119af67bd5c7c0f	CNA record
linux linux_kernel linux:linux_kernel	from 6.4 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 7.0; 7.0; 7.0; 7.0; 7.0	NVD

References

References

https://git.kernel.org/stable/c/695b491dc3f20365fd5821f22e25dbe3c1c20cbc
https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0	patch
https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564e	patch
https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e	patch
https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0f	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.