CVE-2009-2768 Null dereference in n/a

What is CVE-2009-2768?

CVE-2009-2768 is a high-severity vulnerability in Linux kernel, published on 14 Aug 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."

Weakness: CWE-824, CWE-476

Which versions are affected by CVE-2009-2768?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2009-2768?

No fix has been published for CVE-2009-2768 yet. Limit exposure of the affected software until one is available.

Is CVE-2009-2768 being exploited?

There is no known exploitation of CVE-2009-2768 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 CVE-2009-2845, GHSA-79c6-w7w7-4c6q.