CVE-2011-0521 Integer overflow in n/a

What is CVE-2011-0521?

CVE-2011-0521 is a high-severity vulnerability in Linux kernel, published on 2 Feb 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

Weakness: CWE-119

Which versions are affected by CVE-2011-0521?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2011-0521?

Apply the vendor's patch.

Is CVE-2011-0521 being exploited?

There is no known exploitation of CVE-2011-0521 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-g7pj-4wjv-5pv3.