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efi_loader: parameter checks for LoadImage

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Add parameter checks in efi_load_image().
Check memory allocation is successful in efi_load_image().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt
2018-03-07 02:40:51 +01:00
committed by Alexander Graf
parent 645b5afbb8
commit 28a4fd46e7
1 changed files with 20 additions and 0 deletions
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20
lib/efi_loader/efi_boottime.c
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@ -1515,8 +1515,27 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
EFI_ENTRY("%d, %p, %pD, %p, %ld, %p", boot_policy, parent_image, EFI_ENTRY("%d, %p, %pD, %p, %ld, %p", boot_policy, parent_image,
file_path, source_buffer, source_size, image_handle); file_path, source_buffer, source_size, image_handle);
if (!image_handle || !parent_image) {
ret = EFI_INVALID_PARAMETER;
goto error;
}
if (!source_buffer && !file_path) {
ret = EFI_NOT_FOUND;
goto error;
}
info = calloc(1, sizeof(*info)); info = calloc(1, sizeof(*info));
if (!info) {
ret = EFI_OUT_OF_RESOURCES;
goto error;
}
obj = calloc(1, sizeof(*obj)); obj = calloc(1, sizeof(*obj));
if (!obj) {
free(info);
ret = EFI_OUT_OF_RESOURCES;
goto error;
}
if (!source_buffer) { if (!source_buffer) {
struct efi_device_path *dp, *fp; struct efi_device_path *dp, *fp;
@ -1552,6 +1571,7 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
failure: failure:
free(info); free(info);
efi_delete_handle(obj); efi_delete_handle(obj);
error:
return EFI_EXIT(ret); return EFI_EXIT(ret);
} }