Add a check to disallow opening large files on 32bit systems if the caller didn't specify O_LARGEFILE. Signed-off-by: Chengguang Xu <cgxu519@xxxxxxx> --- fs/ceph/file.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index ad0bed99b1d5..0dada8d60731 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -349,6 +349,10 @@ int ceph_open(struct inode *inode, struct file *file) return 0; } + if (!(file->f_flags & O_LARGEFILE) && + i_size_read(inode) > MAX_NON_LFS) + return -EFBIG; + /* filter out O_CREAT|O_EXCL; vfs did that already. yuck. */ flags = file->f_flags & ~(O_CREAT|O_EXCL); if (S_ISDIR(inode->i_mode)) -- 2.17.1 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
