On Mon, Feb 16, 2026 at 2:32 AM Yuto Ohnuki <[email protected]> wrote: > > Add virtio_fs_verify_response() to validate that the server properly > follows the FUSE protocol by checking: > > - Response length is at least sizeof(struct fuse_out_header). > - oh.len matches the actual response length. > - oh.unique matches the request's unique identifier. > > On validation failure, set error to -EIO and normalize oh.len to prevent > underflow in copy_args_from_argbuf(). > > Addresses the TODO comment in virtio_fs_request_complete(). > > Signed-off-by: Yuto Ohnuki <[email protected]> > --- > fs/fuse/virtio_fs.c | 29 +++++++++++++++++++++++++---- > 1 file changed, 25 insertions(+), 4 deletions(-)
Reviewed-by: Stefan Hajnoczi <[email protected]>
