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efi_loader: ImageSize must be multiple of SectionAlignment 

According to the Portable Executable and Common Object File Format
Specification the image size must be a multiple of the alignment
of sections.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-04-03 22:29:32 +02:00 committed by Alexander Graf
parent 84b40b40ad
commit 82786754b9
1 changed files with 2 additions and 0 deletions
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2
lib/efi_loader/efi_image_loader.c
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@ -175,6 +175,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
virt_size = ALIGN(virt_size, opt->SectionAlignment);
} else if (can_run_nt32 &&
(nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)) {
IMAGE_OPTIONAL_HEADER32 *opt = &nt->OptionalHeader;
@ -190,6 +191,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
virt_size = ALIGN(virt_size, opt->SectionAlignment);
} else {
printf("%s: Invalid optional header magic %x\n", __func__,
nt->OptionalHeader.Magic);