High 7.8Published May 2, 2025

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

Updated under an hour ago (Oct 28, 2026, 11:10 AM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from bbff2f321a864ee07c9d3d1245af498023146951 before 580634b03a55f04a3c1968bcbd97736c079c6601; from bbff2f321a864ee07c9d3d1245af498023146951 before 3cfc3564411acf96bf2fb791f706a1aa4f872c1d; from bbff2f321a864ee07c9d3d1245af498023146951 before a069909acc4435eeb41d05ccc03baa447cc01b7e; from bbff2f321a864ee07c9d3d1245af498023146951 before bb2e3bfb2a79db0c2057c6f701b782954394c67f; from bbff2f321a864ee07c9d3d1245af498023146951 before c7df4813b149362248d6ef7be41a311e27bf75fe	CNA record
linux linux_kernel linux: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; 6.3; 6.3	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.