PT-2024-9233 · Linux+6 · Linux Kernel+6
Andrea Mayer
·
Published
2024-05-20
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Updated
2026-03-14
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CVE-2024-39490
CVSS v3.1
6.2
Medium
| Vector | AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to a memory leak in the Linux kernel, specifically in the
seg6 input core() function. This function is responsible for adding the SRH into a packet and uses skb cow head() to ensure sufficient headroom in the sk buff for accommodating the link-layer header. If skb cow header() fails, seg6 input core() catches the error but does not release the sk buff, resulting in a memory leak. The problem was introduced in a specific commit and persists even after subsequent commits that refactored the seg6 input() code to deal with netfilter hooks. A proposed patch addresses the memory leak by requiring seg6 input core() to release the sk buff if skb cow head() fails.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu