CVE-2022-1462 Race condition in kernel

What is CVE-2022-1462?

CVE-2022-1462 is a medium-severity vulnerability in Debian Debian Linux, published on 31 May 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 read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.

Weakness: CWE-362

Which versions are affected by CVE-2022-1462?

It affects 3 products.

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

How do I fix CVE-2022-1462?

Apply the vendor's patch.

Is CVE-2022-1462 being exploited?

There is no known exploitation of CVE-2022-1462 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• 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 DEBIAN-CVE-2022-1462, GHSA-34x8-rwh3-j65f, UBUNTU-CVE-2022-1462.