From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A568AC77B75 for ; Mon, 8 May 2023 11:38:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234023AbjEHLip (ORCPT ); Mon, 8 May 2023 07:38:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235959AbjEHLiO (ORCPT ); Mon, 8 May 2023 07:38:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96B3B1FAB9 for ; Mon, 8 May 2023 04:37:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 122B363372 for ; Mon, 8 May 2023 11:37:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 185B2C433D2; Mon, 8 May 2023 11:37:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683545857; bh=fxESuXsWI4JgjvhVrvIBLgzYsTpDgkLn1r7eHq+2yLk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nCIF34A1k7ZV10n/e9dZQ083z48mq0YSH4ownX1ujt85dgqYn9aTWS8bi/UslmGSn C+CACXk45EzxM836vkcz3u6+G+M/Mm12Tl7t+Tv4S/tIRd+DYxi3afuoPk/WePdOpF L9rqblEXS1HDzMgR7dYCb4HC/HPNU0mF4gcyTsFE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andrii Nakryiko , Alexei Starovoitov , Sasha Levin Subject: [PATCH 5.15 159/371] bpf: fix precision propagation verbose logging Date: Mon, 8 May 2023 11:46:00 +0200 Message-Id: <20230508094818.400977753@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094811.912279944@linuxfoundation.org> References: <20230508094811.912279944@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Andrii Nakryiko [ Upstream commit 34f0677e7afd3a292bc1aadda7ce8e35faedb204 ] Fix wrong order of frame index vs register/slot index in precision propagation verbose (level 2) output. It's wrong and very confusing as is. Fixes: 529409ea92d5 ("bpf: propagate precision across all frames, not just the last one") Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20230313184017.4083374-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov Signed-off-by: Sasha Levin --- kernel/bpf/verifier.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 8e6f868d6cb9b..41601299f8b4a 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -10620,7 +10620,7 @@ static int propagate_precision(struct bpf_verifier_env *env, !(state_reg->live & REG_LIVE_READ)) continue; if (env->log.level & BPF_LOG_LEVEL2) - verbose(env, "frame %d: propagating r%d\n", i, fr); + verbose(env, "frame %d: propagating r%d\n", fr, i); err = mark_chain_precision_frame(env, fr, i); if (err < 0) return err; @@ -10636,7 +10636,7 @@ static int propagate_precision(struct bpf_verifier_env *env, continue; if (env->log.level & BPF_LOG_LEVEL2) verbose(env, "frame %d: propagating fp%d\n", - (-i - 1) * BPF_REG_SIZE, fr); + fr, (-i - 1) * BPF_REG_SIZE); err = mark_chain_precision_stack_frame(env, fr, i); if (err < 0) return err; -- 2.39.2