{"id":"CVE-2024-49920","revision":"5802ec970dbc453dbc295f6ae6e76379","records":[{"revision":"5802ec970dbc453dbc295f6ae6e76379","observedAt":"2026-10-30T13:45:33.454+00:00","statement":{"source":"cve-program","id":"CVE-2024-49920","aliases":[],"title":"drm/amd/display: Check null pointers before multiple uses","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before multiple uses\n\n[WHAT & HOW]\nPoniters, such as stream_enc and dc->bw_vbios, are null checked previously\nin the same function, so Coverity warns \"implies that stream_enc and\ndc->bw_vbios might be null\". They are used multiple times in the\nsubsequent code and need to be checked.\n\nThis fixes 10 FORWARD_NULL issues reported by Coverity.","state":0,"publishedAt":"2024-10-21T18:01:46.437+00:00","modifiedAt":"2026-10-30T12:19:38.272+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/core/dc_hw_sequencer.c\",\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\",\n                        \"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c\",\n                        \"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\n                            \"lessThan\": \"7dc67992b35bc11895149b4261c4ad745312a18d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\n                            \"lessThan\": \"4f51f6d23c5856f105110531f81d84e78e462005\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\n                            \"lessThan\": \"26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\n                            \"lessThan\": \"fdd5ecbbff751c3b9061d8ebb08e5c96119915b4\",\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/core/dc_hw_sequencer.c\",\n                        \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\",\n                        \"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c\",\n                        \"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c\",\n                        \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.191\",\n                            \"lessThanOrEqual\": \"6.1.*\",\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\": \"6.11.3\",\n                            \"lessThanOrEqual\": \"6.11.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/7dc67992b35bc11895149b4261c4ad745312a18d","https://git.kernel.org/stable/c/4f51f6d23c5856f105110531f81d84e78e462005","https://git.kernel.org/stable/c/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27","https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-49920","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-49920","identifiers":["CVE-2024-49920"]},"retained":false,"historicalAffected":[]}],"coverage":[]}