CVE-2022-28893 Use after free in n/a

What is CVE-2022-28893?

CVE-2022-28893 is a high-severity use after free vulnerability in Debian Debian Linux, published on 11 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets are in the intended state.

Weakness: CWE-416

Which versions are affected by CVE-2022-28893?

It affects 13 products.

Products include Debian Debian Linux, Linux kernel, Netapp H300e Firmware, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware and 7 more.

How do I fix CVE-2022-28893?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-28893 being exploited?

There is no known exploitation of CVE-2022-28893 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-9332, DEBIAN-CVE-2022-28893, GHSA-qmh3-rcx6-h2r6, UBUNTU-CVE-2022-28893, openSUSE-SU-2024:12017-1.