No, NK gave those shells from their stockpile and Russia lost a lot of barrels due to their quality or rathert lack thereof. The more shells North Korea gives Russia, the better for Ukraine.
Ukraine claims poor-quality North Korean-supplied shells are injuring Russian soldiers and damaging gun barrels.
www.businessinsider.com
In particular, the General Staff said that this appeared to be happening with Russian troops in the Dnipro Group under the command of Colonel General Mikhail Teplinsky, operating in the south of Ukraine.
news.yahoo.com
Vladimir Putin has bought over a million artillery shells and other munitions to use in Ukraine.
www.express.co.uk
Thanks to a batch of shells from North Korea, Russian forces in Ukraine are flush with artillery ammunition. What gunners don’t have in abundance are howitzer barrels.
www.forbes.com
Basically non-western countries don't manage the shelf-lives of their munitions very well, and keep them well past the safe to use date.