Make filemap_splice_read() check s_maxbytes analogously to filemap_read(). Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx> cc: Steve French <stfrench@xxxxxxxxxxxxx> cc: Jens Axboe <axboe@xxxxxxxxx> cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> cc: David Hildenbrand <david@xxxxxxxxxx> cc: John Hubbard <jhubbard@xxxxxxxxxx> cc: linux-mm@xxxxxxxxx cc: linux-block@xxxxxxxxxxxxxxx cc: linux-fsdevel@xxxxxxxxxxxxxxx --- mm/filemap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/filemap.c b/mm/filemap.c index a2006936a6ae..0fcb0b80c2e2 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2887,6 +2887,9 @@ ssize_t filemap_splice_read(struct file *in, loff_t *ppos, bool writably_mapped; int i, error = 0; + if (unlikely(*ppos >= in->f_mapping->host->i_sb->s_maxbytes)) + return 0; + init_sync_kiocb(&iocb, in); iocb.ki_pos = *ppos;
