{"id":"CVE-2025-37870","summary":"drm/amd/display: prevent hang on link training fail","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: prevent hang on link training fail\n\n[Why]\nWhen link training fails, the phy clock will be disabled. However, in\nenable_streams, it is assumed that link training succeeded and the\nmux selects the phy clock, causing a hang when a register write is made.\n\n[How]\nWhen enable_stream is hit, check if link training failed. If it did, fall\nback to the ref clock to avoid a hang and keep the system in a recoverable\nstate.","aliases":["ECHO-7aa3-ba93-8bf3"],"modified":"2026-04-21T02:27:06.751621063Z","published":"2025-05-09T06:43:59.074Z","related":["SUSE-SU-2025:01919-1","SUSE-SU-2025:01951-1","SUSE-SU-2025:01964-1","SUSE-SU-2025:01965-1","SUSE-SU-2025:01967-1","SUSE-SU-2025:01972-1","SUSE-SU-2025:02000-1","SUSE-SU-2025:20408-1","SUSE-SU-2025:20413-1","SUSE-SU-2025:20419-1","SUSE-SU-2025:20421-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37870.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0363c03672cd3191f037905bf981eb523a3b71b1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/04bf4f2a497e9877c425c5124652e61fb8a1a0aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8058061ed9d6bc259d1e678607b07d259342c08f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37870.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37870"},{"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":"7462475e3a06fbb0b36243b391296f9f411e9041"},{"fixed":"0363c03672cd3191f037905bf981eb523a3b71b1"},{"fixed":"04bf4f2a497e9877c425c5124652e61fb8a1a0aa"},{"fixed":"8058061ed9d6bc259d1e678607b07d259342c08f"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37870.json"}}],"schema_version":"1.7.5"}