{"cve":"CVE-2022-50756","nvd":{"published":"2025-12-24T13:16:02.353","modified":"2026-10-15T22:17:33.853","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix mempool alloc size\n\nConvert the max size to bytes to match the units of the divisor that\ncalculates the worst-case number of PRP entries.\n\nThe result is used to determine how many PRP Lists are required. The\ncode was previously rounding this to 1 list, but we can require 2 in the\nworst case. In that scenario, the driver would corrupt memory beyond the\nsize provided by the mempool.\n\nWhile unlikely to occur (you'd need a 4MB in exactly 127 phys segments\non a queue that doesn't support SGLs), this memory corruption has been\nobserved by kfence.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/9141144b37f30e3e7fa024bcfa0a13011e546ba9","https://git.kernel.org/stable/c/b1814724e0d7162bdf4799f2d565381bc2251c63","https://git.kernel.org/stable/c/c89a529e823d51dd23c7ec0c047c7a454a428541","https://git.kernel.org/stable/c/dfb6d54893d544151e7f480bc44cfe7823f5ad23","https://git.kernel.org/stable/c/e1777b4286e526c58b4ee699344b0ad85aaf83a0"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2022-50756","score":0.00201,"percentile":0.09902,"date":"2026-10-25"},"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."]}