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CVE-2022-49809
Linux Kernel X25 LAPB SKB Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.

INFO

Published Date :

May 1, 2025, 3:16 p.m.

Last Modified :

May 2, 2025, 1:53 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-49809 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
To address the vulnerability, update the Linux kernel packages.
  • Update the affected packages.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-49809.

URL Resource
https://git.kernel.org/stable/c/0ef17d966445358a55c5f4ccf2c73cca3e39192b
https://git.kernel.org/stable/c/2929cceb2fcf0ded7182562e4888afafece82cce
https://git.kernel.org/stable/c/2d675be16a461310d738d93f9f1a00da62055c5a
https://git.kernel.org/stable/c/9f00da9c866d506998bf0a3f699ec900730472da
https://git.kernel.org/stable/c/c8baf1fc248b2e88642f094fea9509a9bf98c5bb
https://git.kernel.org/stable/c/dfcfbe4f2e4b2c81cff4e79b48502d97fda73118
https://git.kernel.org/stable/c/e109b41870db995cae25dfaf0cc3922f9028b1a1
https://git.kernel.org/stable/c/fda0ba7c84b46d10947c687320804b9de149a921
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-49809 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-49809 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-49809 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-49809 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 01, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.
    Added Reference https://git.kernel.org/stable/c/0ef17d966445358a55c5f4ccf2c73cca3e39192b
    Added Reference https://git.kernel.org/stable/c/2929cceb2fcf0ded7182562e4888afafece82cce
    Added Reference https://git.kernel.org/stable/c/2d675be16a461310d738d93f9f1a00da62055c5a
    Added Reference https://git.kernel.org/stable/c/9f00da9c866d506998bf0a3f699ec900730472da
    Added Reference https://git.kernel.org/stable/c/c8baf1fc248b2e88642f094fea9509a9bf98c5bb
    Added Reference https://git.kernel.org/stable/c/dfcfbe4f2e4b2c81cff4e79b48502d97fda73118
    Added Reference https://git.kernel.org/stable/c/e109b41870db995cae25dfaf0cc3922f9028b1a1
    Added Reference https://git.kernel.org/stable/c/fda0ba7c84b46d10947c687320804b9de149a921
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.