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.
Affected Software
1 affected component
Linux Kernel
Event History
Aug 15, 2026
CVE Published
via MITRE·05:59 AM
Data Sourced
via MITRE·05:59 AM
DescriptionSeverity
Data Sourced
via NVD·06:22 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-74433?
The severity of CVE-2026-74433 is rated at 46.
2
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.
3
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.
4
What components are affected by CVE-2026-74433?
CVE-2026-74433 specifically affects the rxrpc subsystem within the Linux kernel.
5
When was CVE-2026-74433 published?
CVE-2026-74433 was published on August 15, 2026.