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enhance: fix buffer size overflow

This commit is contained in:
shenglian zhou 2023-08-28 11:25:16 +08:00
parent 8935b905f7
commit 09463cb43e
1 changed files with 5 additions and 1 deletions
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6
source/libs/scalar/src/sclfunc.c
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@ -654,8 +654,12 @@ int32_t substrFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
SColumnInfoData *pInputData = pInput->columnData;
SColumnInfoData *pOutputData = pOutput->columnData;
int32_t outputLen = pInputData->varmeta.length * pInput->numOfRows;
uint32_t outputLen = pInputData->varmeta.length;
char *outputBuf = taosMemoryCalloc(outputLen, 1);
if (outputBuf == NULL) {
qError("memory allocation failure. size: %u", outputLen);
return TSDB_CODE_OUT_OF_MEMORY;
}
char *output = outputBuf;
for (int32_t i = 0; i < pInput->numOfRows; ++i) {