diff mbox series

[v2,10/16] openvswitch: Use kmalloc_size_roundup() to match ksize() usage

Message ID 20220923202822.2667581-11-keescook@chromium.org
State Accepted
Commit ab3f7828c9793a5dfa99a54dc19ae3491c38bfa3
Headers show
Series slab: Introduce kmalloc_size_roundup() | expand

Commit Message

Kees Cook Sept. 23, 2022, 8:28 p.m. UTC 
Round up allocations with kmalloc_size_roundup() so that openvswitch's
use of ksize() is always accurate and no special handling of the memory
is needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE.

Cc: Pravin B Shelar <pshelar@ovn.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Cc: dev@openvswitch.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 net/openvswitch/flow_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 4c09cf8a0ab2..6621873abde2 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -2309,7 +2309,7 @@  static struct sw_flow_actions *nla_alloc_flow_actions(int size)
 
 	WARN_ON_ONCE(size > MAX_ACTIONS_BUFSIZE);
 
-	sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL);
+	sfa = kmalloc(kmalloc_size_roundup(sizeof(*sfa) + size), GFP_KERNEL);
 	if (!sfa)
 		return ERR_PTR(-ENOMEM);