CVE-2024-50259 netdevsim: Add trailing zero to terminate the string in nsim_nexthop_bucket_activity_write()

What is CVE-2024-50259?

CVE-2024-50259 is a medium-severity vulnerability in Linux kernel, published on 9 Nov 2024. 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:

netdevsim: Add trailing zero to terminate the string in nsim_nexthop_bucket_activity_write()

This was found by a static analyzer. We should not forget the trailing zero after copy_from_user() if we will further do some string operations, sscanf() in this case. Adding a trailing zero will ensure that the function performs properly.

Weakness: CWE-125

Which versions are affected by CVE-2024-50259?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50259?

Apply the vendor's patch.

Is CVE-2024-50259 being exploited?

There is no known exploitation of CVE-2024-50259 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 AZL-53244, AZL-53289, BELL-CVE-2024-50259, DEBIAN-CVE-2024-50259, GHSA-gc72-pc9p-m8wc, UBUNTU-CVE-2024-50259.