CVE-2009-2908 Null dereference in n/a

What is CVE-2009-2908?

CVE-2009-2908 is a medium-severity vulnerability in Linux kernel, published on 13 Oct 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.

Which versions are affected by CVE-2009-2908?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2009-2908?

Apply the vendor's patch.

Is CVE-2009-2908 being exploited?

There is no known exploitation of CVE-2009-2908 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-f3r5-84q7-26q7.