On Fri, 2018-10-19 at 11:29 -0400, Olga Kornievskaia wrote: > From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> > > Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> > --- > fs/read_write.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/fs/read_write.c b/fs/read_write.c > index 39b4a21..c60790f 100644 > --- a/fs/read_write.c > +++ b/fs/read_write.c > @@ -1570,6 +1570,9 @@ ssize_t vfs_copy_file_range(struct file > *file_in, loff_t pos_in, > if (unlikely(ret)) > return ret; > > + if (pos_in >= i_size_read(inode_in)) > + return -EINVAL; > + > if (!(file_in->f_mode & FMODE_READ) || > !(file_out->f_mode & FMODE_WRITE) || > (file_out->f_flags & O_APPEND)) This patch requires an ACK from the VFS maintainers if I'm to push it upstream. Cc: Al and Linux-fsdevel. -- Trond Myklebust Linux NFS client maintainer, Hammerspace trond.myklebust@xxxxxxxxxxxxxxx
