CVE-2023-0122 Null dereference in Kernel

What is CVE-2023-0122?

CVE-2023-0122 is a high-severity vulnerability in Linux kernel, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A NULL pointer dereference vulnerability in the Linux kernel NVMe functionality, in nvmet_setup_auth(), allows an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine. Affected versions v6.0-rc1 to v6.0-rc3, fixed in v6.0-rc4.

Weakness: CWE-476

Which versions are affected by CVE-2023-0122?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-0122?

Apply the vendor's patch.

Is CVE-2023-0122 being exploited?

There is no known exploitation of CVE-2023-0122 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-chp6-wqp3-f3gg, UBUNTU-CVE-2023-0122.