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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50A4EC352A3 for ; Mon, 10 Feb 2020 13:18:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AB4520842 for ; Mon, 10 Feb 2020 13:18:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581340727; bh=Y99xlyLQrXtsdcanSRnTZ49lXdbPrrRGR89HVhZToeU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Fo0lfgv3lmmBHxW5MAlAoblHcupOTOcOJZk3KhrtwDgfepsMVHj/XfWcF4VezE87r XWzCaSwfeZiFsojqa5iY6Ox1a4uIGWaF6G44gQXoBEpm82/9XJpyrRKedcpiMjGfDm 4gZcrZQnElNF6HTo4VLTHArrj42qsQup/fmYUqwM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728931AbgBJNSm (ORCPT ); Mon, 10 Feb 2020 08:18:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:59710 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728929AbgBJMhw (ORCPT ); Mon, 10 Feb 2020 07:37:52 -0500 Received: from localhost (unknown [209.37.97.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 045762051A; Mon, 10 Feb 2020 12:37:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581338270; bh=Y99xlyLQrXtsdcanSRnTZ49lXdbPrrRGR89HVhZToeU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nB4yl/7Qcfn+g3cGFgKtEXUy+jV5Ue+l9nh7T5rtM1x4+CKli736LhZqvP2eqKWFP JlKfohyCGHq5bkVt/boK0sdzKNRKHmscPpQ19IRH7EfnHTi7BjzRPgZQHCnYm4zLbV RGTacnpJROQl0rRpV4T8zxZwowcSvvS3oxpvkogg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Yonghong Song , Andrii Nakryiko Subject: [PATCH 5.4 151/309] selftests/bpf: Fix test_attach_probe Date: Mon, 10 Feb 2020 04:31:47 -0800 Message-Id: <20200210122420.784810109@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200210122406.106356946@linuxfoundation.org> References: <20200210122406.106356946@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alexei Starovoitov commit 580205dd4fe800b1e95be8b6df9e2991f975a8ad upstream. Fix two issues in test_attach_probe: 1. it was not able to parse /proc/self/maps beyond the first line, since %s means parse string until white space. 2. offset has to be accounted for otherwise uprobed address is incorrect. Fixes: 1e8611bbdfc9 ("selftests/bpf: add kprobe/uprobe selftests") Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Acked-by: Yonghong Song Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20191219020442.1922617-1-ast@kernel.org Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/bpf/prog_tests/attach_probe.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/tools/testing/selftests/bpf/prog_tests/attach_probe.c +++ b/tools/testing/selftests/bpf/prog_tests/attach_probe.c @@ -2,7 +2,7 @@ #include ssize_t get_base_addr() { - size_t start; + size_t start, offset; char buf[256]; FILE *f; @@ -10,10 +10,11 @@ ssize_t get_base_addr() { if (!f) return -errno; - while (fscanf(f, "%zx-%*x %s %*s\n", &start, buf) == 2) { + while (fscanf(f, "%zx-%*x %s %zx %*[^\n]\n", + &start, buf, &offset) == 3) { if (strcmp(buf, "r-xp") == 0) { fclose(f); - return start; + return start - offset; } }