CVE-2016-8646 Null dereference in n/a

What is CVE-2016-8646?

CVE-2016-8646 is a medium-severity vulnerability in Linux kernel, published on 28 Nov 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.

Weakness: CWE-476

Which versions are affected by CVE-2016-8646?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2016-8646?

Apply the vendor's patch.

Is CVE-2016-8646 being exploited?

There is no known exploitation of CVE-2016-8646 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 DEBIAN-CVE-2016-8646, GHSA-cgff-4xfm-p3wr, UBUNTU-CVE-2016-8646.