Use After Free Affecting ocfs2-kmp-default package, versions <6.4.0-150700.53.81.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-SLES157-OCFS2KMPDEFAULT-19909481
  • published18 Sept 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

NewCVE-2026-64245  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 ocfs2-kmp-default to version 6.4.0-150700.53.81.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocfs2-kmp-default package and not the ocfs2-kmp-default package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

fbdev: modedb: fix a possible UAF in fb_find_mode()

If mode_option is NULL, it is assigned from mode_option_buf:

if (!mode_option) { fb_get_options(NULL, &mode_option_buf); mode_option = mode_option_buf; }

Later, name is assigned from mode_option:

const char *name = mode_option;

However, mode_option_buf is freed before name is no longer used:

kfree(mode_option_buf);

while name is still accessed by:

if ((name_matches(db[i], name, namelen) ||

Since name aliases mode_option_buf, this may result in a use-after-free.

Fix this by extending the lifetime of mode_option_buf until the end of the function by using scope-based resource management for cleanup.

CVSS Base Scores

version 3.1