I am performing static analysis on the codebase and identified a potential NULL Pointer Dereference in redisReconnect located in hiredis.c.

There is an inconsistency in how c->funcs is guarded.

In the block handling free_privctx, c->funcs is dereferenced without a check, assuming it is non-NULL if c->privctx is present:

if (c->privctx && c->funcs->free_privctx) {
    c->funcs->free_privctx(c->privctx); // CRASH if c->funcs is NULL
    c->privctx = NULL;
}

However, immediately after, the code explicitly checks if c->funcs is NULL before accessing close:

if (c->funcs && c->funcs->close) {
    c->funcs->close(c);
}

If c->funcs can be NULL (as implied by the second check), the first block is unsafe.