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sanity checks

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This commit is contained in:
Jacob Barthelmeh
2016-06-30 11:41:22 -06:00
parent c17830e5c7
commit cf522314ce
1 changed files with 11 additions and 1 deletions
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12
src/internal.c
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@@ -4957,6 +4957,12 @@ int GrowInputBuffer(WOLFSSL* ssl, int size, int usedLength)
while (align < hdrSz)
align *= 2;
}
if (usedLength < 0 || size < 0) {
WOLFSSL_MSG("GrowInputBuffer() called with negative number");
return BAD_FUNC_ARG;
}
tmp = (byte*) XMALLOC(size + usedLength + align, ssl->heap,
DYNAMIC_TYPE_IN_BUFFER);
WOLFSSL_MSG("growing input buffer\n");
@@ -7753,8 +7759,12 @@ static int DoDtlsHandShakeMsg(WOLFSSL* ssl, byte* input, word32* inOutIdx,
ssl->keys.dtls_expected_peer_handshake_number) {
/* Already saw this message and processed it. It can be ignored. */
*inOutIdx += fragSz;
if(type == finished )
if(type == finished ) {
if (*inOutIdx + ssl->keys.padSz > totalSz) {
return BUFFER_E;
}
*inOutIdx += ssl->keys.padSz;
}
ret = DtlsPoolSend(ssl);
}
else if (fragSz < size) {