CVE-2021-47134

Summary

In the Linux kernel, the following vulnerability has been resolved:

efi/fdt: fix panic when no valid fdt found

setup_arch() would invoke efi_init()->efi_get_fdt_params(). If no valid fdt found then initial_boot_params will be null. So we should stop further fdt processing here. I encountered this issue on risc-v.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb91540d52a08b65eb6a2b09132e1bd54fa82754c < 5148066edbdc89c6fe5bc419c31a5c22e5f83bdbaffected
LinuxLinuxb91540d52a08b65eb6a2b09132e1bd54fa82754c < 8a7e8b4e5631a03ea2fee27957857a56612108caaffected
LinuxLinuxb91540d52a08b65eb6a2b09132e1bd54fa82754c < 668a84c1bfb2b3fd5a10847825a854d63fac7baaaffected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.43 <= 5.10.*unaffected
LinuxLinux5.12.10 <= 5.12.*unaffected
LinuxLinux5.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References