{"cve":"CVE-2025-21997","nvd":{"published":"2025-04-03T08:15:15.127","modified":"2026-06-17T08:44:48.180","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: fix an integer overflow in xp_create_and_assign_umem()\n\nSince the i and pool->chunk_size variables are of type 'u32',\ntheir product can wrap around and then be cast to 'u64'.\nThis can lead to two different XDP buffers pointing to the same\nmemory area.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-190"],"references":["https://git.kernel.org/stable/c/130290f44bce0eead2b827302109afc3fe189ddd","https://git.kernel.org/stable/c/205649d642a5b376724f04f3a5b3586815e43d3b","https://git.kernel.org/stable/c/559847f56769037e5b2e0474d3dbff985b98083d","https://git.kernel.org/stable/c/b7b4be1fa43294b50b22e812715198629806678a","https://git.kernel.org/stable/c/c7670c197b0f1a8726ad5c87bc2bf001a1fc1bbd"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:00:57.946988208+00:00"},"epss":{"cve":"CVE-2025-21997","score":0.00207,"percentile":0.10784,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}