CVE-2026-31440

MEDIUM EPSS 2.3%
Published Apr 22, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥6.4  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 5

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

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564e
    Patch