CVE-2023-53125 net: usb: smsc75xx: Limit packet length to skb->len

What is CVE-2023-53125?

CVE-2023-53125 is a medium-severity vulnerability in Linux kernel, published on 2 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

net: usb: smsc75xx: Limit packet length to skb->len

Packet length retrieved from skb data may be larger than the actual socket buffer length (up to 9026 bytes). In such case the cloned skb passed up the network stack will leak kernel memory contents.

Weakness: CWE-401

Which versions are affected by CVE-2023-53125?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-53125?

Apply the vendor's patch.

Is CVE-2023-53125 being exploited?

There is no known exploitation of CVE-2023-53125 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2023-53125, DEBIAN-CVE-2023-53125, GHSA-p8mj-x7w2-cp95, UBUNTU-CVE-2023-53125.