From: Kees Cook <keescook@xxxxxxxxxxxx> [ Upstream commit ab3f7828c9793a5dfa99a54dc19ae3491c38bfa3 ] 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@xxxxxxx> Cc: dev@xxxxxxxxxxxxxxx Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20221018090628.never.537-kees@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/openvswitch/flow_netlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index 4a07ab094a84..ead5418c126e 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); -- 2.35.1
