CVE-2026-74433: rxrpc: Fix UAF in rxgk_issue_challenge()

Published Aug 15, 2026

Updated

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix UAF in rxgkissuechallenge()

Fix rxgkissuechallenge() to free the page containing the challenge content after invoking the tracepoint as the whdr passed to the tracepoint points into the page just freed.

Event History

Aug 15, 2026

CVE Published

via MITRE·05:59 AM

Data Sourced

via MITRE·05:59 AM

Description

Frequently Asked Questions

What is the severity of CVE-2026-74433?

The severity of CVE-2026-74433 is rated at 46.

How do I fix CVE-2026-74433?

To fix CVE-2026-74433, update the Linux kernel to the latest version that includes the patch for this vulnerability.

What type of vulnerability is CVE-2026-74433?

CVE-2026-74433 is a use-after-free (UAF) vulnerability in the Linux kernel's rxrpc implementation.

What components are affected by CVE-2026-74433?

CVE-2026-74433 specifically affects the rxrpc subsystem within the Linux kernel.

When was CVE-2026-74433 published?

CVE-2026-74433 was published on August 15, 2026.

CVE-2026-74433: rxrpc: Fix UAF in rxgk_issue_challenge()

Event History

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Frequently Asked Questions

What is the severity of CVE-2026-74433?

How do I fix CVE-2026-74433?

What type of vulnerability is CVE-2026-74433?

What components are affected by CVE-2026-74433?

When was CVE-2026-74433 published?

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Frequently Asked Questions

What is the severity of CVE-2026-74433?

How do I fix CVE-2026-74433?

What type of vulnerability is CVE-2026-74433?

What components are affected by CVE-2026-74433?

When was CVE-2026-74433 published?