diff mbox series

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

Message ID 20220923202822.2667581-11-keescook@chromium.org (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series slab: Introduce kmalloc_size_roundup() | expand

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netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
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netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 2 maintainers not CCed: trix@redhat.com nathan@kernel.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
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netdev/verify_fixes success No Fixes tag
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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);