CVE-2026-31442

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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWEs

CWE-125, CWE-416

Published

2026-04-22

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/504c0e6751001ac46917c73e703f2b1b92cfc026
• https://git.kernel.org/stable/c/867d0c801f21370d561420fa32f2ea1a7dc3a22d
• https://git.kernel.org/stable/c/d6077df7b75d26e4edf98983836c05d00ebabd8d

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