High 7.8Published Apr 22, 2026

CVE-2026-31442dmaengine: idxd: Fix possible invalid memory access after FLR

Updated under an hour ago (2026-10-19 07:50 UTC)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix possible invalid memory access after FLR In the case that the first Function Level Reset (FLR) concludes correctly, but in the second FLR the scratch area for the saved configuration cannot be allocated, it's possible for a invalid memory access to happen. Always set the deallocated scratch area to NULL after FLR completes.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: Analyzed
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 98d187a989036096feaa2fef1ec3b2240ecdeacf before 504c0e6751001ac46917c73e703f2b1b92cfc026; from 98d187a989036096feaa2fef1ec3b2240ecdeacf before 867d0c801f21370d561420fa32f2ea1a7dc3a22d; from 98d187a989036096feaa2fef1ec3b2240ecdeacf before d6077df7b75d26e4edf98983836c05d00ebabd8d	CNA record
linux linux_kernel linux:linux_kernel	from 6.14 before 6.18.21; from 6.19 before 6.19.11; 7.0; 7.0; 7.0; 7.0; 7.0	NVD

References

https://git.kernel.org/stable/c/504c0e6751001ac46917c73e703f2b1b92cfc026patch
https://git.kernel.org/stable/c/867d0c801f21370d561420fa32f2ea1a7dc3a22dpatch
https://git.kernel.org/stable/c/d6077df7b75d26e4edf98983836c05d00ebabd8dpatch

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.