{"id":"CVE-2023-52634","summary":"drm/amd/display: Fix disable_otg_wa logic","details":"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.","modified":"2026-08-12T03:51:25.042620932Z","published":"2024-04-02T06:49:12.413Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52634.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2ce156482a6fef349d2eba98e5070c412d3af662"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ce29728ef6485a367934cc100249c66dd3cde5b6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52634.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52634"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8774029f76b9806f2f3586bb0502408076767fd5"},{"fixed":"ce29728ef6485a367934cc100249c66dd3cde5b6"},{"fixed":"2ce156482a6fef349d2eba98e5070c412d3af662"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52634.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.7.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52634.json"}}],"schema_version":"1.9.0"}