Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] libceph, ceph: potential dereference of null pointer | Date | Thu, 9 Dec 2021 10:50:38 +0800 |
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The return value of kzalloc() needs to be checked. To avoid use of null pointer in case of the failure of alloc.
Fixes: 3d14c5d2b6e1 ("ceph: factor out libceph from Ceph file system") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- net/ceph/osd_client.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index ff8624a7c964..3203e8a34370 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1234,6 +1234,8 @@ static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) WARN_ON(onum == CEPH_HOMELESS_OSD); osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); + if (!osd) + return NULL; osd_init(osd); osd->o_osdc = osdc; osd->o_osd = onum; -- 2.25.1
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