[PATCH] libceph: Avoid a NULL pointer dereference
From: Aditya Pakki <hidden>
Date: 2019-03-14 21:17:41
Also in:
ceph-devel, lkml
Subsystem:
ceph common code (libceph), the rest · Maintainers:
Ilya Dryomov, Alex Markuze, Viacheslav Dubeyko, Linus Torvalds
kmalloc allocates memory for dest->name and attempts to call memcpy without a check for failure. This patch avoids such a scenario. Signed-off-by: Aditya Pakki <redacted> --- net/ceph/osdmap.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 48a31dc9161c..c76a7c7e6a77 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c@@ -1901,6 +1901,8 @@ void ceph_oid_copy(struct ceph_object_id *dest, } else { dest->name = dest->inline_name; } + if (!dest->name) + return; memcpy(dest->name, src->name, src->name_len + 1); dest->name_len = src->name_len; }
--
2.17.1