CVE-2026-31442

Published: Apr 22, 2026Modified: May 7, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Description

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.

Affected (7)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 6.14 to 6.18.21
Linux Linux Kernel	From 6.19 to 6.19.11
Linux Linux Kernel	Version 7.0 rc1
Linux Linux Kernel	Version 7.0 rc2
Linux Linux Kernel	Version 7.0 rc3
Linux Linux Kernel	Version 7.0 rc4
Linux Linux Kernel	Version 7.0 rc5

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (3)

https://git.kernel.org/stable/c/504c0e6751001ac46917c73e703f2b1b92cfc026

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/867d0c801f21370d561420fa32f2ea1a7dc3a22d

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/d6077df7b75d26e4edf98983836c05d00ebabd8d

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

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