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CVE-2026-31633

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CVE-2026-31633

Published: Apr 24, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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).

VendorProductVersions

Linux

Linux

affected
9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a - < 1f864d9daaf622aeaa774404fd51e7d6a435b046
affected
9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a - < c1e242beb6b1efc3c286f617e8d940c8fbf2ed41
affected
9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a - < 699e52180f4231c257821c037ed5c99d5eb0edb8

Linux

Linux

affected
6.16
unaffected
0 - < 6.16
unaffected
6.18.23 - <= 6.18.*
unaffected
6.19.13 - <= 6.19.*
unaffected
7.0 - <= *

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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