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Invite fees in FairLauncher::_calInviteFees() may be 0, in which case storage update could be skipped

Low/InfoDistrictOne audit·Three Sigma·Social money games·13th June, 20243S-D1-N03

Description

In FairLauncher::_calInviteFees(), state updates are skipped if the directInviter is address(0), but they could also be skipped if the amount is null, which happens after the hard cap is reached.

Recommendation

Skip storage slot updates if the amount is null.

Status

Acknowledged

Source

Disclosed by 0xSimao · Sherlock's 2025 Watson of the Year · 21 first places in 57 audit contests