mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-24 12:44:11 +08:00
ceph: fix dereference of null pointer cf
Currently in the case where kmem_cache_alloc fails the null pointer
cf is dereferenced when assigning cf->is_capsnap = false. Fix this
by adding a null pointer check and return path.
Cc: stable@vger.kernel.org
Addresses-Coverity: ("Dereference null return")
Fixes: b2f9fa1f3b
("ceph: correctly handle releasing an embedded cap flush")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
parent
9f3589993c
commit
05a444d3f9
@ -1736,6 +1736,9 @@ struct ceph_cap_flush *ceph_alloc_cap_flush(void)
|
||||
struct ceph_cap_flush *cf;
|
||||
|
||||
cf = kmem_cache_alloc(ceph_cap_flush_cachep, GFP_KERNEL);
|
||||
if (!cf)
|
||||
return NULL;
|
||||
|
||||
cf->is_capsnap = false;
|
||||
return cf;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user