diff options
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c index 1d43adc766..dd077bb0cf 100644 --- a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c +++ b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c @@ -1608,9 +1608,7 @@ ParseAndAddExistingSmbiosTable ( //
// Make sure not to access memory beyond SmbiosEnd
//
- if ((Smbios.Raw + sizeof (SMBIOS_STRUCTURE) > SmbiosEnd.Raw) ||
- (Smbios.Raw + sizeof (SMBIOS_STRUCTURE) < Smbios.Raw))
- {
+ if ((UINTN)(SmbiosEnd.Raw - Smbios.Raw) < sizeof (SMBIOS_STRUCTURE)) {
return EFI_INVALID_PARAMETER;
}
@@ -1625,9 +1623,7 @@ ParseAndAddExistingSmbiosTable ( // Make sure not to access memory beyond SmbiosEnd
// Each structure shall be terminated by a double-null (0000h).
//
- if ((Smbios.Raw + Smbios.Hdr->Length + 2 * sizeof (UINT8) > SmbiosEnd.Raw) ||
- (Smbios.Raw + Smbios.Hdr->Length + 2 * sizeof (UINT8) < Smbios.Raw))
- {
+ if ((UINTN)(SmbiosEnd.Raw - Smbios.Raw) < (Smbios.Hdr->Length + 2U)) {
return EFI_INVALID_PARAMETER;
}
|