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Improve checking of XSNPRINTF return value in DecodePolicyOID

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This commit is contained in:
Guido Vranken
2021-06-06 03:54:15 +02:00
parent d7117cd8bb
commit a1257429bd
1 changed files with 1 additions and 1 deletions
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wolfcrypt/src/asn.c
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@ -8887,7 +8887,7 @@ int DecodePolicyOID(char *out, word32 outSz, const byte *in, word32 inSz)
/* write val as text into out */
val += in[inIdx];
w = XSNPRINTF(out + outIdx, outSz - outIdx, ".%u", val);
if (w < 0)
if (w < 0 || (word32)w > outSz - outIdx)
goto exit;
outIdx += w;
val = 0;