CVE-2005-2099 Null dereference in n/a

What is CVE-2005-2099?

CVE-2005-2099 is a medium-severity vulnerability in Linux kernel, published on 22 Aug 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Linux kernel before 2.6.12.5 does not properly destroy a keyring that is not instantiated properly, which allows local users or remote attackers to cause a denial of service (kernel oops) via a keyring with a payload that is not empty, which causes the creation to fail, leading to a null dereference in the keyring destructor.

Weakness: CWE-399

Which versions are affected by CVE-2005-2099?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2005-2099?

Upgrade to a fixed version.

Is CVE-2005-2099 being exploited?

There is no known exploitation of CVE-2005-2099 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-qr8j-3qwg-5435.