Commit b72e19b9 authored Aug 15, 2013 by Dan Carpenter Committed by Sage Weil Aug 27, 2013

libceph: potential NULL dereference in ceph_osdc_handle_map()



There are two places where we read "nr_maps" if both of them are set to
zero then we would hit a NULL dereference here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sage Weil <sage@inktank.com>

parent 18741196

net/ceph/osd_client.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1793,6 +1793,8 @@ void ceph_osdc_handle_map(struct ceph_osd_client osdc, struct ceph_msg msg)
		nr_maps--;
		}

		if (!osdc->osdmap)
		goto bad;
		done:
		downgrade_write(&osdc->map_sem);
		ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch);