In the Linux kernel, the following vulnerability has been resolved:
efivarfs: fix error propagation in efivarentryget()
efivarentryget() always returns success even if the underlying __efivarentryget() fails, masking errors.
This may result in uninitialized heap memory being copied to userspace in the efivarfsfileread() path.
Fix it by returning the error from __efivarentryget().