{"id":"CVE-2025-37870","revision":null,"records":[{"revision":"8c61672d2ebe46c6a3b62a38e63c7dbf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37870","aliases":[],"title":"drm/amd/display: prevent hang on link training fail","description":"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.","state":0,"publishedAt":"2025-05-09T06:43:59.074+00:00","modifiedAt":"2026-10-21T12:36:33.834+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\",\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7462475e3a06fbb0b36243b391296f9f411e9041\",\n                            \"lessThan\": \"52cdc47cf6519e2912a34d29b7eeb3f10ca85efa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7462475e3a06fbb0b36243b391296f9f411e9041\",\n                            \"lessThan\": \"0363c03672cd3191f037905bf981eb523a3b71b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7462475e3a06fbb0b36243b391296f9f411e9041\",\n                            \"lessThan\": \"04bf4f2a497e9877c425c5124652e61fb8a1a0aa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7462475e3a06fbb0b36243b391296f9f411e9041\",\n                            \"lessThan\": \"8058061ed9d6bc259d1e678607b07d259342c08f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\",\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.25\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.4\",\n                            \"lessThanOrEqual\": \"6.14.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/52cdc47cf6519e2912a34d29b7eeb3f10ca85efa","https://git.kernel.org/stable/c/0363c03672cd3191f037905bf981eb523a3b71b1","https://git.kernel.org/stable/c/04bf4f2a497e9877c425c5124652e61fb8a1a0aa","https://git.kernel.org/stable/c/8058061ed9d6bc259d1e678607b07d259342c08f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37870","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37870","identifiers":["CVE-2025-37870"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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