{"cve":"CVE-2023-52634","nvd":{"published":"2024-04-02T07:15:41.177","modified":"2026-06-17T06:43:13.183","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix disable_otg_wa logic\n\n[Why]\nWhen switching to another HDMI mode, we are unnecesarilly\ndisabling/enabling FIFO causing both HPO and DIG registers to be set at\nthe same time when only HPO is supposed to be set.\n\nThis can lead to a system hang the next time we change refresh rates as\nthere are cases when we don't disable OTG/FIFO but FIFO is enabled when\nit isn't supposed to be.\n\n[How]\nRemoving the enable/disable FIFO entirely.","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/2ce156482a6fef349d2eba98e5070c412d3af662","https://git.kernel.org/stable/c/ce29728ef6485a367934cc100249c66dd3cde5b6","https://git.kernel.org/stable/c/2ce156482a6fef349d2eba98e5070c412d3af662","https://git.kernel.org/stable/c/ce29728ef6485a367934cc100249c66dd3cde5b6"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:47:51.568503435+00:00"},"epss":{"cve":"CVE-2023-52634","score":0.00193,"percentile":0.09074,"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."]}