CVE-2009-0835 Security feature bypass in n/a

What is CVE-2009-0835?

CVE-2009-0835 is a low-severity vulnerability in Linux kernel, published on 6 Mar 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343.

Weakness: CWE-264

Which versions are affected by CVE-2009-0835?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2009-0835?

Apply the vendor's patch.

Is CVE-2009-0835 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0835 exists.

Public exploit code: 1 Exploit-DB entry.

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-x75x-89gj-wfcm.