I recall you don't.need.charka to get out of genjustu
You do need chakra controll for getting out of genjutsu.(Hence why Sakura is skilled at it).
"The ninja needs to stop the flow of chakra in their body, and then apply an even stronger power to disrupt the flow of the caster's chakra; this is called Genjutsu Dissipation (幻術解, Genjutsu Kai). This can also be done by an unaffected ninja by applying a sudden surge of chakra into the affected person.[6] In addition, tailed beasts can break their jinchūriki out of genjutsu in a similar fashion if they have a good enough cooperation, as seen in Killer B's case."
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This is also in the manga when Naruto battles Itachi but I am to lazy to fetch it for you.