GreyNoise Labs - Null problem! Or: the dangers of an invisible byte
A quick and silly post about a weird exploit situation| GreyNoise Labs
Sometimes I come across JavaScript code with a lot of null checking against properties that are uninitialized, which is really wrong. Many people might think that uninitialized properties get a default value of null, but that is not the case despite having something like foo == null resulting in true, assuming ...| The Code Ship
On 7th of April 2025, Álvaro Herrera committed patch: Allow NOT NULL constraints to be added as NOT VALID This allows them to be added without scanning the table, and validating them afterwards without holding access exclusive lock on the table after any violating rows have been deleted or fixed. Doing ALTER TABLE … Continue reading "Waiting for PostgreSQL 18 – Allow NOT NULL constraints to be added as NOT VALID"| select * from depesz;
On 5th of March 2025, Andrew Dunstan committed patch: Allow json{b}_strip_nulls to remove null array elements An additional paramater ("strip_in_arrays") is added to these functions. It defaults to false. If true, then null array elements are removed as well as null valued object fields. JSON that just consists of a single null is not … Continue reading "Waiting for PostgreSQL 18 – Allow json{b}_strip_nulls to remove null array elements"| select * from depesz;
A quick and silly post about a weird exploit situation| GreyNoise Labs
JacksonDunstan.com covers game programming| www.jacksondunstan.com
