diff options
Diffstat (limited to 'NetworkPkg/DnsDxe')
| -rw-r--r-- | NetworkPkg/DnsDxe/DnsImpl.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/NetworkPkg/DnsDxe/DnsImpl.c b/NetworkPkg/DnsDxe/DnsImpl.c index 74deaa4330..794df1d728 100644 --- a/NetworkPkg/DnsDxe/DnsImpl.c +++ b/NetworkPkg/DnsDxe/DnsImpl.c @@ -1330,9 +1330,12 @@ ParseDnsResponse ( //
while (AnswerSectionNum < DnsHeader->AnswersNum) {
//
- // Answer name should be PTR.
+ // Answer name should be PTR, else EFI_UNSUPPORTED returned.
//
- ASSERT ((*(UINT8 *) AnswerName & 0xC0) == 0xC0);
+ if ((*(UINT8 *) AnswerName & 0xC0) != 0xC0) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_EXIT;
+ }
//
// Get Answer section.
@@ -1408,7 +1411,12 @@ ParseDnsResponse ( //
// This is address entry, get Data.
//
- ASSERT (Dns4TokenEntry != NULL && AnswerSection->DataLength == 4);
+ ASSERT (Dns4TokenEntry != NULL);
+
+ if (AnswerSection->DataLength != 4) {
+ Status = EFI_ABORTED;
+ goto ON_EXIT;
+ }
HostAddr4 = Dns4TokenEntry->Token->RspData.H2AData->IpList;
AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);
@@ -1462,7 +1470,12 @@ ParseDnsResponse ( //
// This is address entry, get Data.
//
- ASSERT (Dns6TokenEntry != NULL && AnswerSection->DataLength == 16);
+ ASSERT (Dns6TokenEntry != NULL);
+
+ if (AnswerSection->DataLength != 16) {
+ Status = EFI_ABORTED;
+ goto ON_EXIT;
+ }
HostAddr6 = Dns6TokenEntry->Token->RspData.H2AData->IpList;
AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);
|