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Fix rdbSaveKeyValuePair() integer overflow.

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Again thanks to @oranagra. The object idle time does not fit into an int
sometimes: use the native type that the serialization function will get
as argument, which is uint64_t.
This commit is contained in:
antirez 2018-06-12 17:31:04 +02:00
parent e534e9aa83
commit b38682199b
1 changed files with 2 additions and 3 deletions
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5
src/rdb.c
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@ -993,8 +993,7 @@ size_t rdbSavedObjectLen(robj *o) {
* On error -1 is returned.
* On success if the key was actually saved 1 is returned, otherwise 0
* is returned (the key was already expired). */
int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, long long expiretime)
{
int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, long long expiretime) {
int savelru = server.maxmemory_policy & MAXMEMORY_FLAG_LRU;
int savelfu = server.maxmemory_policy & MAXMEMORY_FLAG_LFU;
@ -1006,7 +1005,7 @@ int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, long long expiretime)
/* Save the LRU info. */
if (savelru) {
int idletime = estimateObjectIdleTime(val);
uint64_t idletime = estimateObjectIdleTime(val);
idletime /= 1000; /* Using seconds is enough and requires less space.*/
if (rdbSaveType(rdb,RDB_OPCODE_IDLE) == -1) return -1;
if (rdbSaveLen(rdb,idletime) == -1) return -1;