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CVE-2025-68759
wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring() In rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA allocations in a loop. When an allocation fails, the previously successful allocations are not freed on exit. Fix that by jumping to err_free_rings label on error, which calls rtl8180_free_rx_ring() to free the allocations. Remove the free of rx_ring in rtl8180_init_rx_ring() error path, and set the freed priv->rx_buf entry to null, to avoid double free.

INFO

Published Date :

Jan. 5, 2026, 10:15 a.m.

Last Modified :

Jan. 5, 2026, 10:15 a.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-68759 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
Fix potential memory leaks by ensuring proper cleanup of allocations on failure.
  • Apply the kernel patch for rtl8180_init_rx_ring memory leak.
  • Ensure successful allocation and cleanup on error.
  • Avoid double freeing by setting freed pointers to null.
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-2025-68759.

URL Resource
https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473
https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d
https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43
https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-68759 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-2025-68759 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-2025-68759 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-2025-68759 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

    Jan. 05, 2026

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring() In rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA allocations in a loop. When an allocation fails, the previously successful allocations are not freed on exit. Fix that by jumping to err_free_rings label on error, which calls rtl8180_free_rx_ring() to free the allocations. Remove the free of rx_ring in rtl8180_init_rx_ring() error path, and set the freed priv->rx_buf entry to null, to avoid double free.
    Added Reference https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473
    Added Reference https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d
    Added Reference https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43
    Added Reference https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7
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.