What’s Vulnerable › Vulnerabilities

CVE-2023-53080: xsk: Add missing overflow check in xdp_umem_reg

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-02 · updated 2026-10-15

Description

In the Linux kernel, the following vulnerability has been resolved: xsk: Add missing overflow check in xdp_umem_reg The number of chunks can overflow u32. Make sure to return -EINVAL on overflow. Also remove a redundant u32 cast assigning umem->npgs.

Affected products

• Linux kernel: from 4.18 before 5.10.177; from 5.11 before 5.15.105; from 5.16 before 6.1.22; from 6.2 before 6.2.9; 6.3-rc1, 6.3-rc2, 6.3-rc3 — fixed in 5.10.177, 5.15.105, 6.1.22, 6.2.9

How to fix

Upgrade to a fixed version: Linux kernel 5.10.177, 5.15.105, 6.1.22, 6.2.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3cfc3564411acf96bf2fb791f706a1aa4f872c1d
• https://git.kernel.org/stable/c/580634b03a55f04a3c1968bcbd97736c079c6601
• https://git.kernel.org/stable/c/a069909acc4435eeb41d05ccc03baa447cc01b7e
• https://git.kernel.org/stable/c/bb2e3bfb2a79db0c2057c6f701b782954394c67f
• https://git.kernel.org/stable/c/c7df4813b149362248d6ef7be41a311e27bf75fe

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