CVE-2022-1671 Null dereference in Kernel

What is CVE-2022-1671?

CVE-2022-1671 is a high-severity vulnerability in Linux kernel, published on 26 Jul 2022. 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 rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.

Weakness: CWE-476

Which versions are affected by CVE-2022-1671?

It affects 6 products.

Products include Linux kernel, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware.

How do I fix CVE-2022-1671?

Apply the vendor's patch.

Is CVE-2022-1671 being exploited?

There is no known exploitation of CVE-2022-1671 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 AZL-10400, DEBIAN-CVE-2022-1671, GHSA-vv47-5mh5-w3hq, UBUNTU-CVE-2022-1671.