setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
{
"cpes": [
"cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
"cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*"
],
"severity": "Low"
}