Commit 397f2389 authored Jul 28, 2017 by Luis Henriques Committed by Ilya Dryomov Sep 06, 2017

ceph: check negative offsets in ceph_llseek()



When a user requests SEEK_HOLE or SEEK_DATA with a negative offset
ceph_llseek should return -ENXIO.  Currently -EINVAL is being returned for
SEEK_DATA and 0 for SEEK_HOLE.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

parent 06d74376

fs/ceph/file.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1481,13 +1481,13 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
		offset += file->f_pos;
		break;
		case SEEK_DATA:
		if (offset >= i_size) {
		if (offset < 0 \|\| offset >= i_size) {
		ret = -ENXIO;
		goto out;
		}
		break;
		case SEEK_HOLE:
		if (offset >= i_size) {
		if (offset < 0 \|\| offset >= i_size) {
		ret = -ENXIO;
		goto out;
		}