{"id":"CVE-2021-47134","state":"PUBLISHED","title":"efi/fdt: fix panic when no valid fdt found","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nefi/fdt: fix panic when no valid fdt found\n\nsetup_arch() would invoke efi_init()->efi_get_fdt_params(). If no\nvalid fdt found then initial_boot_params will be null. So we\nshould stop further fdt processing here. I encountered this\nissue on risc-v.","publishedAt":"2024-03-15T20:14:36.804Z","updatedAt":"2026-05-11T13:48:42.432Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"5148066edbdc89c6fe5bc419c31a5c22e5f83bdb","versionType":"git"},{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"8a7e8b4e5631a03ea2fee27957857a56612108ca","versionType":"git"},{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"668a84c1bfb2b3fd5a10847825a854d63fac7baa","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/efi/fdtparams.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.43","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.10","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/efi/fdtparams.c"]}],"references":["https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb","https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca","https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47134.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47134","state":"PUBLISHED","datePublished":"2024-03-15T20:14:36.804Z","dateUpdated":"2026-05-11T13:48:42.432Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-03-04T18:12:48.840Z"},"containers":{"cna":{"title":"efi/fdt: fix panic when no valid fdt found","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nefi/fdt: fix panic when no valid fdt found\n\nsetup_arch() would invoke efi_init()->efi_get_fdt_params(). If no\nvalid fdt found then initial_boot_params will be null. So we\nshould stop further fdt processing here. I encountered this\nissue on risc-v."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"5148066edbdc89c6fe5bc419c31a5c22e5f83bdb","versionType":"git"},{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"8a7e8b4e5631a03ea2fee27957857a56612108ca","versionType":"git"},{"version":"b91540d52a08b65eb6a2b09132e1bd54fa82754c","status":"affected","lessThan":"668a84c1bfb2b3fd5a10847825a854d63fac7baa","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/efi/fdtparams.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.43","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.10","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/efi/fdtparams.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb"},{"url":"https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca"},{"url":"https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:48:42.432Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.43"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.12.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47134","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-18T20:27:32.803046Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:15:01.885Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:24:39.859Z"}}]}}}