Buffer Access with Incorrect Length Value Affecting kernel-rt-modules-internal package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.21% (10th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTMODULESINTERNAL-20098131
  • published24 Sept 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

NewCVE-2026-89719  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 kernel-rt-modules-internal.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-internal package and not the kernel-rt-modules-internal package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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

zram: fix out-of-bounds access in read_block_state()

read_block_state() calculates nr_pages before taking dev_lock. If the device is reset and reinitialized with a smaller disksize before lock acquisition, nr_pages still describes the old table. The subsequent loop can then call slot_lock() past the end of the newly allocated table.

Read disksize after acquiring dev_lock and checking that the device is initialized. The read lock then keeps the table and its bound stable for the duration of the scan.

CVSS Base Scores

version 3.1