On Wed, 13 Mar 2024 at 21:55, Amir Goldstein <amir73il@xxxxxxxxx> wrote: > The WARN_ON that I put in ovl_verify_area() may be too harsh. > I think they can happen if lower file is changed (i_size) while file is being > copied up after reading i_size into the copy length and this could be > the case with this syzbot reproducer that keeps mounting overlayfs > instances over same path. > > Should probably demote those WARN_ON to just returning EIO? Sounds good. Thanks, Miklos
