CVE-2025-68759 Details
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.
A memory leak vulnerability has been identified in the Linux kernel's RTL8180 wireless driver. The issue arises in the 'rtl8180_init_rx_ring' function, where memory is allocated for SKB packets and DMA operations within a loop. If a memory allocation fails, the function exits without freeing the previously allocated memory, leading to a potential memory leak. This vulnerability affects the Linux kernel stable tree.
The vulnerability has been fixed in the Linux kernel stable tree. Users can upgrade to the latest version to address this issue.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jan 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/3677c01891fb0239361e444afee8398868e34bdf | kernel.org | |
| https://git.kernel.org/stable/c/89caaeee8dd95fae8bb4f4964e6fe3ca688500c4 | kernel.org | |
| https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/a4fb7cca9837378878e6c94d9e7af019c8fdfcdb | kernel.org | |
| https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/bf8513dfa31ea015c9cf415796dca2113d293840 | kernel.org | |
| https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7 | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
| Realtek rtl8180 | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jan 19, 2026 | CVE Modified | kernel.org |
| Jan 11, 2026 | CVE Modified | kernel.org |
| Jan 5, 2026 | New CVE Received | kernel.org |