CVE-2009-2909 Integer overflow in n/a

What is CVE-2009-2909?

CVE-2009-2909 is a medium-severity vulnerability in Linux kernel, published on 20 Oct 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer signedness error in the ax25_setsockopt function in net/ax25/af_ax25.c in the ax25 subsystem in the Linux kernel before 2.6.31.2 allows local users to cause a denial of service (OOPS) via a crafted optlen value in an SO_BINDTODEVICE operation.

Weakness: CWE-189

Which versions are affected by CVE-2009-2909?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2009-2909?

Upgrade to a fixed version.

Is CVE-2009-2909 being exploited?

There is no known exploitation of CVE-2009-2909 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 GHSA-5f36-8p58-fx88.