fix leak in error handling of debug populate command (#7062)

valsize was not modified during the for loop below instead of getting from c->argv[4], therefore there is no need to put inside the for loop.. Moreover, putting the check outside loop will also avoid memory leaking, decrRefCount(key) should be called in the original code if we put the check in for loop

(cherry picked from commit 2afa308306fc641204f10a2bbe2fe35e28b6d259)
This commit is contained in:
Wen Hui 2020-07-28 15:05:48 -04:00 committed by Oran Agra
parent 2e6563cdcf
commit 9f873c6c2a

View File

@ -591,14 +591,13 @@ NULL
if (getLongFromObjectOrReply(c, c->argv[2], &keys, NULL) != C_OK)
return;
dictExpand(c->db->dict,keys);
long valsize = 0;
if ( c->argc == 5 && getLongFromObjectOrReply(c, c->argv[4], &valsize, NULL) != C_OK )
return;
for (j = 0; j < keys; j++) {
long valsize = 0;
snprintf(buf,sizeof(buf),"%s:%lu",
(c->argc == 3) ? "key" : (char*)c->argv[3]->ptr, j);
key = createStringObject(buf,strlen(buf));
if (c->argc == 5)
if (getLongFromObjectOrReply(c, c->argv[4], &valsize, NULL) != C_OK)
return;
if (lookupKeyWrite(c->db,key) != NULL) {
decrRefCount(key);
continue;