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Sanity-check in nsStandardURL::Deserialize(). r=mayhemer, a=RyanVM

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Also add test for faulty nsStandardURL deserialization.

See Bug 1392739.
This commit is contained in:
Valentin Gosu 2018-06-05 16:37:34 +02:00 • committed by Roy Tam
commit bfe6f25a2d
2 changed files with 19 additions and 1 deletions
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4
netwerk/base/nsStandardURL.cpp
View file

@ -3455,8 +3455,10 @@ FromIPCSegment(const nsACString& aSpec, const ipc::StandardURLSegment& aSegment,
return false;
}
CheckedInt<uint32_t> segmentLen = aSegment.position();
segmentLen += aSegment.length();
// Make sure the segment does not extend beyond the spec.
if (NS_WARN_IF(aSegment.position() + aSegment.length() > aSpec.Length())) {
if (NS_WARN_IF(!segmentLen.isValid() || segmentLen.value() > aSpec.Length())) {
return false;
}

16
netwerk/test/gtest/TestStandardURL.cpp
View file

@ -4,8 +4,11 @@
#include "nsCOMPtr.h"
#include "nsNetCID.h"
#include "nsIURL.h"
#include "nsIStandardURL.h"
#include "nsString.h"
#include "nsComponentManagerUtils.h"
#include "nsIIPCSerializableURI.h"
#include "mozilla/ipc/URIUtils.h"
TEST(TestStandardURL, Simple) {
nsCOMPtr<nsIURL> url( do_CreateInstance(NS_STANDARDURL_CONTRACTID) );
@ -67,3 +70,16 @@ MOZ_GTEST_BENCH(TestStandardURL, Perf, [] {
url->GetRef(out);
}
});
TEST(TestStandardURL, Deserialize_Bug1392739)
{
mozilla::ipc::StandardURLParams standard_params;
standard_params.urlType() = nsIStandardURL::URLTYPE_STANDARD;
standard_params.spec() = NS_LITERAL_CSTRING("");
standard_params.host() = mozilla::ipc::StandardURLSegment(4294967295, 1);
mozilla::ipc::URIParams params(standard_params);
nsCOMPtr<nsIIPCSerializableURI> url = do_CreateInstance(NS_STANDARDURL_CID);
ASSERT_EQ(url->Deserialize(params), false);
}