{"cve":"CVE-2021-47263","nvd":{"published":"2024-05-21T15:15:15.007","modified":"2026-06-17T04:17:02.833","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: wcd934x: Fix shift-out-of-bounds error\n\nbit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1)\nwhich is not right, and this was caught by below usban check\n\nUBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14","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":[],"references":["https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840","https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862","https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634","https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840","https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47263","score":0.00225,"percentile":0.13216,"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."]}