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Fix potential fault at createDoubleObject #964

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Aug 29, 2022
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Fix potential fault at createDoubleObject #964

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3 changes: 3 additions & 0 deletions hiredis.c
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Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,9 @@ static void *createIntegerObject(const redisReadTask *task, long long value) {
static void *createDoubleObject(const redisReadTask *task, double value, char *str, size_t len) {
redisReply *r, *parent;

if (len == SIZE_MAX) // Prevents hi_malloc(0) if len equals to SIZE_MAX
return NULL;

r = createReplyObject(REDIS_REPLY_DOUBLE);
if (r == NULL)
return NULL;
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