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selinux: use GFP_ATOMIC under spin_lock 

commit 4502403dcf8f5c76abd4dbab8726c8e4ecb5cd34 upstream.

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>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2013-03-16 12:48:11 +03:00 committed by Greg Kroah-Hartman
parent e55005034b
commit 8c97feb5ed
1 changed files with 1 additions and 1 deletions
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2
security/selinux/xfrm.c
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@ -310,7 +310,7 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
if (old_ctx) {
new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len,
GFP_KERNEL);
GFP_ATOMIC);
if (!new_ctx)
return -ENOMEM;