Memory Leak Affecting bpftool package, versions <0:5.15.0-302.167.6.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Memory Leak vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ORACLE9-BPFTOOL-8376086
  • published14 Nov 2024
  • disclosed4 Sept 2024

Introduced: 4 Sep 2024

CVE-2024-44971  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Oracle:9 bpftool to version 0:5.15.0-302.167.6.el9uek or higher.
This issue was patched in ELSA-2024-12815.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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

net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()

bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices. of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount. The current implementation does not decrement the refcount, which causes memory leak.

This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.

CVSS Scores

version 3.1