CVE-2025-38061 net: pktgen: fix access outside of user given buffer in pktgen_thread_write()
A local attacker can trigger an out-of-bounds memory access in the Linux kernel's pktgen module, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-38061?
CVE-2025-38061 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 18 Jun 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: pktgen: fix access outside of user given buffer in pktgen_thread_write()
Honour the user given buffer size for the strn_len() calls (otherwise strn_len() will access memory outside of the user given buffer).
Which versions are affected by CVE-2025-38061?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-38061?
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-2025-38061 being exploited?
There is no known exploitation of CVE-2025-38061 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-63995, BELL-CVE-2025-38061, DEBIAN-CVE-2025-38061, GHSA-h8hg-357g-gr7f, ROOT-OS-DEBIAN-11-CVE-2025-38061, ROOT-OS-DEBIAN-12-CVE-2025-38061 and 3 more.