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set *inLen = outLen if output == NULL, if != NULL, check that outLen <= *inLen before assigning *inLen = outLen

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Ruby Martin
2026-03-12 10:25:14 -06:00
parent 6ebd967345
commit d359f420ab
1 changed files with 2 additions and 1 deletions
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wolfcrypt/src/asn.c
+2 -1
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@@ -12912,8 +12912,8 @@ static int DsaKeyIntsToDer(DsaKey* key, byte* output, word32* inLen,
seqSz = SetSequence(verSz + intTotalLen, seq);
outLen = seqSz + verSz + intTotalLen;
*inLen = outLen;
if (output == NULL) {
*inLen = outLen;
FreeTmpDsas(tmps, key->heap, ints);
return WC_NO_ERR_TRACE(LENGTH_ONLY_E);
}
@@ -12921,6 +12921,7 @@ static int DsaKeyIntsToDer(DsaKey* key, byte* output, word32* inLen,
FreeTmpDsas(tmps, key->heap, ints);
return BAD_FUNC_ARG;
}
*inLen = outLen;
/* write to output */
XMEMCPY(output, seq, seqSz);