Vulnerabilities > CVE-2021-47134 - NULL Pointer Dereference vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH 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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb
- https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb
- https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa
- https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa
- https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca
- https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca