setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Redis | Ubuntu | focal | * |