{"cve":"CVE-2024-42121","nvd":{"published":"2024-07-30T08:15:04.353","modified":"2026-06-17T07:48:52.753","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check index msg_id before read or write\n\n[WHAT]\nmsg_id is used as an array index and it cannot be a negative value, and\ntherefore cannot be equal to MOD_HDCP_MESSAGE_ID_INVALID (-1).\n\n[HOW]\nCheck whether msg_id is valid before reading and setting.\n\nThis fixes 4 OVERRUN issues reported by Coverity.","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":["CWE-129"],"references":["https://git.kernel.org/stable/c/59d99deb330af206a4541db0c4da8f73880fba03","https://git.kernel.org/stable/c/9933eca6ada0cd612e19522e7a319bcef464c0eb","https://git.kernel.org/stable/c/a31ea49dc8064a557565725cf045944307476a6e","https://git.kernel.org/stable/c/ae91ffbc8b8d942e3e7f188728cad557b7ed5ee4","https://git.kernel.org/stable/c/b5b8837d066cc182ff69fb5629ad32ade5484567"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:53:51.317825789+00:00"},"epss":{"cve":"CVE-2024-42121","score":0.0026,"percentile":0.17773,"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."]}