{"id":"CVE-2025-21989","state":"PUBLISHED","title":"drm/amd/display: fix missing .is_two_pixels_per_container","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix missing .is_two_pixels_per_container\n\nStarting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1,\ndue to lack of .is_two_pixels_per_container function in dce60_tg_funcs,\ncauses a NULL pointer dereference on PCs with old GPUs, such as R9 280X.\n\nSo this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.\n\n(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)","publishedAt":"2025-04-02T12:53:12.956Z","updatedAt":"2026-05-11T21:10:29.475Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"fefa811e616b5d0b555ed65743e528a0a8a0b377","versionType":"git"},{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"36d04c9313d8d83ead92242f037099ac73e02120","versionType":"git"},{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"e204aab79e01bc8ff750645666993ed8b719de57","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.20","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.8","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","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/dce60/dce60_timing_generator.c"]}],"references":["https://git.kernel.org/stable/c/fefa811e616b5d0b555ed65743e528a0a8a0b377","https://git.kernel.org/stable/c/36d04c9313d8d83ead92242f037099ac73e02120","https://git.kernel.org/stable/c/e204aab79e01bc8ff750645666993ed8b719de57"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21989.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21989","state":"PUBLISHED","datePublished":"2025-04-02T12:53:12.956Z","dateUpdated":"2026-05-11T21:10:29.475Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.800Z"},"containers":{"cna":{"title":"drm/amd/display: fix missing .is_two_pixels_per_container","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix missing .is_two_pixels_per_container\n\nStarting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1,\ndue to lack of .is_two_pixels_per_container function in dce60_tg_funcs,\ncauses a NULL pointer dereference on PCs with old GPUs, such as R9 280X.\n\nSo this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.\n\n(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"fefa811e616b5d0b555ed65743e528a0a8a0b377","versionType":"git"},{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"36d04c9313d8d83ead92242f037099ac73e02120","versionType":"git"},{"version":"e6a901a00822659181c93c86d8bbc2a17779fddc","status":"affected","lessThan":"e204aab79e01bc8ff750645666993ed8b719de57","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.20","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.8","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","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/dce60/dce60_timing_generator.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fefa811e616b5d0b555ed65743e528a0a8a0b377"},{"url":"https://git.kernel.org/stable/c/36d04c9313d8d83ead92242f037099ac73e02120"},{"url":"https://git.kernel.org/stable/c/e204aab79e01bc8ff750645666993ed8b719de57"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:10:29.475Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.13.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T17:14:10.062764Z","id":"CVE-2025-21989","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T17:14:12.545Z"}}]}}}