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: linux kernel
References5
- git.kernel.org/stable/c/3cfc3564411acf96bf2fb791f706a1aa4f872c1d Patch
- git.kernel.org/stable/c/580634b03a55f04a3c1968bcbd97736c079c6601 Patch
- git.kernel.org/stable/c/a069909acc4435eeb41d05ccc03baa447cc01b7e Patch
- git.kernel.org/stable/c/bb2e3bfb2a79db0c2057c6f701b782954394c67f Patch
- git.kernel.org/stable/c/c7df4813b149362248d6ef7be41a311e27bf75fe Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 13 · as of 7 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.