CVE-2025-68759

/// Technical 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.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References