CVE-2022-2905 Information disclosure in kernel

What is CVE-2022-2905?

CVE-2022-2905 is a medium-severity vulnerability in Debian Debian Linux, published on 9 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Weakness: CWE-125

Which versions are affected by CVE-2022-2905?

It affects 3 products.

Products include Debian Debian Linux, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2022-2905?

Apply the vendor's patch.

Is CVE-2022-2905 being exploited?

There is no known exploitation of CVE-2022-2905 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
• How this page is made

Also known as AZL-10922, CVE-2022-38785, DEBIAN-CVE-2022-2905, UBUNTU-CVE-2022-2905.