What’s Vulnerable › Vulnerabilities

CVE-2026-46012: rxrpc: Fix memory leaks in rxkad_verify_response()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-10-30
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix memory leaks in rxkad_verify_response() Fix rxkad_verify_response() to free the ticket and the server key under all circumstances by initialising the ticket pointer to NULL and then making all paths through the function after the first allocation has been done go through a single common epilogue that just releases everything - where all the releases skip on a NULL pointer.

Affected products

• Linux kernel: from 5.11 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 — fixed in 6.6.140, 6.12.86, 6.18.27, 7.0.4
• Linux: 5.11 — fixed in 7.1

How to fix

Upgrade to a fixed version: Linux kernel 6.6.140, 6.12.86, 6.18.27, 7.0.4; Linux 7.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/34f61a07e0cdefaecd3ec03bb5fb22215643678f
• https://git.kernel.org/stable/c/852b9d64cea421336579b2de3d1338dfa677e2dd
• https://git.kernel.org/stable/c/861b9a0a1823bf064a7b810d29502a9ef043f40f
• https://git.kernel.org/stable/c/c14433e967cff95bebc77c9c4a2a0ed4e0e22783
• https://git.kernel.org/stable/c/c4b8f32e73eafd4a5076be890c7c8506ec04567c
• https://git.kernel.org/stable/c/c91f33fb8356dedc82bc56ce210f1a5dbee62a52

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