From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei-Chun Chao Subject: [PATCH v2 net-next] bpf: fix bpf_perf_event_read() loop upper bound Date: Wed, 12 Aug 2015 07:57:12 -0700 Message-ID: <1439391432-4690-1-git-send-email-weichunc@plumgrid.com> Cc: davem@davemloft.net, ast@plumgrid.com, xiakaixu@huawei.com To: netdev@vger.kernel.org Return-path: Received: from mail-pa0-f54.google.com ([209.85.220.54]:35887 "EHLO mail-pa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750949AbbHLO5R (ORCPT ); Wed, 12 Aug 2015 10:57:17 -0400 Received: by pacrr5 with SMTP id rr5so16220275pac.3 for ; Wed, 12 Aug 2015 07:57:16 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: Verifier rejects programs incorrectly. Fixes: 35578d798400 ("bpf: Implement function bpf_perf_event_read()") Cc: Kaixu Xia Cc: Alexei Starovoitov Signed-off-by: Wei-Chun Chao --- v2: better subject line --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 48e1c71..ed12e38 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -853,7 +853,7 @@ static int check_map_func_compatibility(struct bpf_map *map, int func_id) if (!map) return 0; - for (i = 0; i <= ARRAY_SIZE(func_limit); i++) { + for (i = 0; i < ARRAY_SIZE(func_limit); i++) { bool_map = (map->map_type == func_limit[i].map_type); bool_func = (func_id == func_limit[i].func_id); /* only when map & func pair match it can continue. -- 1.9.1