{"cve":"CVE-2021-47253","nvd":{"published":"2024-05-21T15:15:14.160","modified":"2026-08-11T03:17:20.087","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix potential memory leak in DMUB hw_init\n\n[Why]\nOn resume we perform DMUB hw_init which allocates memory:\ndm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc\nThat results in memory leak in suspend/resume scenarios.\n\n[How]\nAllocate memory for the DC wrapper to DMUB only if it was not\nallocated before.\nNo need to reallocate it on suspend/resume.","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-401"],"references":["https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c","https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b","https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde","https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c","https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47253","score":0.00225,"percentile":0.13227,"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."]}