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Fix hyperloglog corruption

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Israel Lot
2019-05-01 12:11:05 -04:00
parent eba5aa4a92
commit 27ae2caae7
1 changed files with 6 additions and 0 deletions
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6
src/hyperloglog.c
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@@ -611,6 +611,10 @@ int hllSparseToDense(robj *o) {
} else {
runlen = HLL_SPARSE_VAL_LEN(p);
regval = HLL_SPARSE_VAL_VALUE(p);
if ((runlen + idx) > HLL_REGISTERS) {
sdsfree(dense);
return C_ERR;
}
while(runlen--) {
HLL_DENSE_SET_REGISTER(hdr->registers,idx,regval);
idx++;
@@ -1081,6 +1085,8 @@ int hllMerge(uint8_t *max, robj *hll) {
} else {
runlen = HLL_SPARSE_VAL_LEN(p);
regval = HLL_SPARSE_VAL_VALUE(p);
if ((runlen + i) > HLL_REGISTERS)
return C_ERR;
while(runlen--) {
if (regval > max[i]) max[i] = (uint8_t)regval; WIN_PORT_FIX /* cast (uint8_t) */
i++;