What’s Vulnerable › Vulnerabilities

CVE-2026-46039: rxgk: Fix potential integer overflow in length check

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-17
• Weakness: CWE-190

Description

In the Linux kernel, the following vulnerability has been resolved: rxgk: Fix potential integer overflow in length check Fix potential integer overflow in rxgk_extract_token() when checking the length of the ticket. Rather than rounding up the value to be tested (which might overflow), round down the size of the available data.

Affected products

• Linux kernel: from 6.16.9 before 6.17; from 6.17.1 before 6.18.27; from 6.19 before 7.0.4; 6.17, 6.17-rc7 — fixed in 6.17, 6.18.27, 7.0.4

How to fix

Upgrade to a fixed version: Linux kernel 6.17, 6.18.27, 7.0.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/183d37f12d1c8ed24a5bfc7addad05510da22a94
• https://git.kernel.org/stable/c/43222ac484f93b3ec2d240a7575e1cedd31f5fa4
• https://git.kernel.org/stable/c/6929350080f4da292d111a3b33e53138fee51cec

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