Resource Leak Affecting kernel-rt-debug-core package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELRTDEBUGCORE-6872967
  • published18 May 2024
  • disclosed17 May 2024

Introduced: 17 May 2024

CVE-2024-35831  (opens in a new tab)
CWE-402  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 kernel-rt-debug-core.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

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

io_uring: Fix release of pinned pages when __io_uaddr_map fails

Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages.

I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.

CVSS Scores

version 3.1