{"cve":"CVE-2026-74297","nvd":{"published":"2026-08-15T06:22:29.307","modified":"2026-10-16T19:17:37.710","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix undefined shift of user RQ WQE size\n\nset_rq_size() computes the RQ WQE size as \"1 << rq_wqe_shift\" based on\nthe user-provided rq_wqe_shift, which is only checked to be greater than\n32, so shifts of 32 are still accepted. A shift of 31 also overflows a\nsigned integer, leading to undefined behavior.\n\nUse check_shl_overflow() to compute the RQ WQE size and reject any\ninvalid values.","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/42f3d2c8c18b92ea33e506a38b64f1a8986c2823","https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b","https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda","https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026","https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-74297","score":0.00176,"percentile":0.07044,"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."]}