Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a potential integer overflow due to rounding up token_len before checking it, thereby allowing the length check to be bypassed. Fix this by checking the unrounded value against len too (len is limited as the response must fit in a single UDP packet).
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.16.1, < 6.18.23 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1f864d9daaf622aeaa774404fd51e7d6a435b046Patch
- https://git.kernel.org/stable/c/699e52180f4231c257821c037ed5c99d5eb0edb8Patch
- https://git.kernel.org/stable/c/c1e242beb6b1efc3c286f617e8d940c8fbf2ed41Patch
FAQ
What is CVE-2026-31633?
CVE-2026-31633 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a potential integer overflow due to round...
How severe is CVE-2026-31633?
CVE-2026-31633 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-31633?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.