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Fix rank overflow in zslInsert with more than 2B entries. (#9249) 

If there are more than 2B entries in a zset.
The calculated span will overflow.
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Binbin 2021-07-18 21:47:33 +08:00 committed by GitHub
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src/t_zset.c
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@ -131,7 +131,7 @@ int zslRandomLevel(void) {
* of the passed SDS string 'ele'. */ * of the passed SDS string 'ele'. */
zskiplistNode *zslInsert(zskiplist *zsl, double score, sds ele) { zskiplistNode *zslInsert(zskiplist *zsl, double score, sds ele) {
zskiplistNode *update[ZSKIPLIST_MAXLEVEL], *x; zskiplistNode *update[ZSKIPLIST_MAXLEVEL], *x;
unsigned int rank[ZSKIPLIST_MAXLEVEL]; unsigned long rank[ZSKIPLIST_MAXLEVEL];
int i, level; int i, level;
serverAssert(!isnan(score)); serverAssert(!isnan(score));