selinux: use GFP_ATOMIC under spin_lock
The call tree here is:
sk_clone_lock() <- takes bh_lock_sock(newsk);
xfrm_sk_clone_policy()
__xfrm_sk_clone_policy()
clone_policy() <- uses GFP_ATOMIC for allocations
security_xfrm_policy_clone()
security_ops->xfrm_policy_clone_security()
selinux_xfrm_policy_clone()
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 48665ec..8ab2951 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -310,7 +310,7 @@
if (old_ctx) {
new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len,
- GFP_KERNEL);
+ GFP_ATOMIC);
if (!new_ctx)
return -ENOMEM;