CVE-2025-38545 net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info

High 7.5 Published Updated

A missing memory allocation in the TI AM65 CPSW driver can lead to memory corruption and denial of service in the Linux kernel.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-38545?

CVE-2025-38545 is a high-severity memory corruption vulnerability in Linux kernel, published on 16 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info

While transitioning from netdev_alloc_ip_align() to build_skb(), memory for the "skb_shared_info" member of an "skb" was not allocated. Fix this by allocating "PAGE_SIZE" as the skb length, accounting for the packet length, headroom and tailroom, thereby including the required memory space for skb_shared_info.

Weakness: CWE-401

Which versions are affected by CVE-2025-38545?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2025-38545?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-38545 being exploited?

There is no known exploitation of CVE-2025-38545 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2025-38545, DEBIAN-CVE-2025-38545, GHSA-7jx7-g6pm-43wc, ROOT-OS-DEBIAN-13-CVE-2025-38545, UBUNTU-CVE-2025-38545.

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