{"id":"CVE-2024-26647","state":"PUBLISHED","title":"drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'\n\nIn link_set_dsc_pps_packet(), 'struct display_stream_compressor *dsc'\nwas dereferenced in a DC_LOGGER_INIT(dsc->ctx->logger); before the 'dsc'\nNULL pointer check.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check 'dsc' (see line 903)","publishedAt":"2024-03-26T17:50:01.057Z","updatedAt":"2026-05-11T20:01:27.512Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6ca7415f11af5200ab10bd420b513f846e9bfb99","status":"affected","lessThan":"6aa5ede6665122f4c8abce3c6eba06b49e54d25c","versionType":"git"},{"version":"6ca7415f11af5200ab10bd420b513f846e9bfb99","status":"affected","lessThan":"cf656fc7276e5b3709a81bc9d9639459be2b2647","versionType":"git"},{"version":"6ca7415f11af5200ab10bd420b513f846e9bfb99","status":"affected","lessThan":"3bb9b1f958c3d986ed90a3ff009f1e77e9553207","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/link/link_dpms.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.15","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.3","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/link/link_dpms.c"]}],"references":["https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25c","https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647","https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/26xxx/CVE-2024-26647.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-26647","state":"PUBLISHED","datePublished":"2024-03-26T17:50:01.057Z","dateUpdated":"2026-05-11T20:01:27.512Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-19T14:20:24.138Z"},"containers":{"cna":{"title":"drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'\n\nIn link_set_dsc_pps_packet(), 'struct display_stream_compressor *dsc'\nwas dereferenced in a DC_LOGGER_INIT(dsc->ctx->logger); 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