diff options
| -rw-r--r-- | mm/filemap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 7a49bac48aea..5c9d564317a5 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2453,6 +2453,9 @@ ssize_t generic_file_buffered_read(struct kiocb *iocb, if (unlikely(iocb->ki_pos >= inode->i_sb->s_maxbytes)) return 0; + if (unlikely(!iov_iter_count(iter))) + return 0; + iov_iter_truncate(iter, inode->i_sb->s_maxbytes); if (nr_pages > ARRAY_SIZE(pages_onstack)) |