CVE-2026-74423: accel/amdxdna: Fix leak when pinning ubuf pages

Published Aug 15, 2026

Updated

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix leak when pinning ubuf pages

When pinuserpagesfast() returns fewer pages than requested, the pages that were successfully pinned are not released, leading to a leak.

Fix this by unpinning any partially pinned pages before returning failure.

Event History

Aug 15, 2026

CVE Published

via MITRE·05:59 AM

Data Sourced

via MITRE·05:59 AM

Description

CVE-2026-74423 has a risk rating of 12, indicating a high severity due to potential resource leaks.

To address CVE-2026-74423, ensure that your Linux kernel is updated to the latest version that includes the fix for this vulnerability.

CVE-2026-74423 can lead to resource leaks which may degrade system performance over time due to memory being unnecessarily reserved.

CVE-2026-74423 affects systems utilizing the Linux kernel that employ the amdxdna acceleration technology.

CVE-2026-74423 is not primarily classified as a remote exploit, but it can be exploited locally under certain conditions.