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efi_loader: check parameters in memory allocation

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If no pointer is provided throw an error.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-07-02 12:53:53 +02:00 • committed by Alexander Graf
parent 21b3edfc96
commit 4d5e071ee0
1 changed files with 6 additions and 0 deletions
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6
lib/efi_loader/efi_memory.c
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@ -293,6 +293,9 @@ efi_status_t efi_allocate_pages(int type, int memory_type,
efi_status_t r = EFI_SUCCESS;
uint64_t addr;
if (!memory)
return EFI_INVALID_PARAMETER;
switch (type) {
case EFI_ALLOCATE_ANY_PAGES:
/* Any page */
@ -386,6 +389,9 @@ efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size, void **buffer)
u64 num_pages = (size + sizeof(struct efi_pool_allocation) +
EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
if (!buffer)
return EFI_INVALID_PARAMETER;
if (size == 0) {
*buffer = NULL;
return EFI_SUCCESS;