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efi_loader: optional pointer for ConvertPointer

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If the EFI_OPTIONAL_PTR is set in DebugDisposition, a NULL pointer does not
constitute an invalid parameter.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt
2020-03-24 17:52:40 +01:00
parent a44d2a2399
commit 724d28171e
2 changed files with 8 additions and 0 deletions
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6
lib/efi_loader/efi_runtime.c
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@@ -512,6 +512,12 @@ efi_convert_pointer(efi_uintn_t debug_disposition, void **address)
ret = EFI_INVALID_PARAMETER;
goto out;
}
if (!*address) {
if (debug_disposition & EFI_OPTIONAL_PTR)
return EFI_SUCCESS;
else
return EFI_INVALID_PARAMETER;
}
addr = (uintptr_t)*address;
for (i = 0; i < efi_descriptor_count; i++) {