CVE-2023-6176 Kernel: local dos vulnerability in scatterwalk_copychunks

What is CVE-2023-6176?

CVE-2023-6176 is a medium-severity vulnerability in Linux kernel, published on 16 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.

Weakness: CWE-476

Which versions are affected by CVE-2023-6176?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2023-6176?

Apply the vendor's patch.

Is CVE-2023-6176 being exploited?

There is no known exploitation of CVE-2023-6176 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 BELL-CVE-2023-6176, DEBIAN-CVE-2023-6176, GHSA-fq9v-vwjc-pv76, UBUNTU-CVE-2023-6176.