From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 82EBF3B584A; Mon, 23 Mar 2026 15:40:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774280447; cv=none; b=mFPUSZocDXulAydtUMMzJw1U/0B/vP9dtntxW3w/+aENPzhp23v6VC9QkEHaShH6gnnyRyZOhDZB8DUkGY2M6ciyccJ78Bc0ulqjLyFieiLbj71SUZfG0U2KN9dVLQ9U5zrTqguWGmQ1QKAkmcoO8nuXGjG4JywiMbgNy1TE+NE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774280447; c=relaxed/simple; bh=rYNo8XPHR13NOfEGctHALckOR9FuoNu5duTDbJBWXzY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kdCBRr38+78mmjGTt4A9JYjl+nTriA0v7XTbQeTnC6b6jLMw7HVmPpeXxV4Y1MT7SdvBcz/io1AiGmbJW+K54UTop/tuAkuAY8SlGASSrRCjkJNuI6X+kroqC0ZV7xnilEHcpMXHJAOi9DIjJRWx8kgxOfI2dAb/C7hfkC4S7Y4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F13DB16F8; Mon, 23 Mar 2026 08:40:39 -0700 (PDT) Received: from e132581.arm.com (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 351473F694; Mon, 23 Mar 2026 08:40:42 -0700 (PDT) From: Leo Yan Date: Mon, 23 Mar 2026 15:40:06 +0000 Subject: [PATCH 5/6] selftests/bpf: Initialize operation name before use Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260323-tools_build_fix_zero_init_bpf_only-v1-5-d1cfad2f4cd1@arm.com> References: <20260323-tools_build_fix_zero_init_bpf_only-v1-0-d1cfad2f4cd1@arm.com> In-Reply-To: <20260323-tools_build_fix_zero_init_bpf_only-v1-0-d1cfad2f4cd1@arm.com> To: Quentin Monnet , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan , Lorenz Bauer , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: Arnaldo Carvalho de Melo , Namhyung Kim , Ian Rogers , James Clark , Kees Cook , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev, Leo Yan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1774280421; l=1078; i=leo.yan@arm.com; s=20250604; h=from:subject:message-id; bh=rYNo8XPHR13NOfEGctHALckOR9FuoNu5duTDbJBWXzY=; b=yD0flLirzs1eHaIrDMPcyYaiJjUVV25J9vWKzOg/3Ot0P4YbsVRXrDEoGpUiQiNtyENh/BQD8 o5FmdwFXyQlCk24+/h2G5xasRczDEk9jppae7kn11853DvY2kQ41vND X-Developer-Key: i=leo.yan@arm.com; a=ed25519; pk=k4BaDbvkCXzBFA7Nw184KHGP5thju8lKqJYIrOWxDhI= ASAN reports stack-buffer-overflow due to the uninitialized op_name. Initialize it to fix the issue. Fixes: 054b6c7866c7 ("selftests/bpf: Add verifier log tests for BPF_BTF_LOAD command") Signed-off-by: Leo Yan --- tools/testing/selftests/bpf/prog_tests/verifier_log.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/prog_tests/verifier_log.c b/tools/testing/selftests/bpf/prog_tests/verifier_log.c index aaa2854974c0a91cbbb9fc13ae0f966de1bcc818..dcbe2ef995c5b211c2b86b9555c02144e11ee7d6 100644 --- a/tools/testing/selftests/bpf/prog_tests/verifier_log.c +++ b/tools/testing/selftests/bpf/prog_tests/verifier_log.c @@ -317,6 +317,7 @@ static void verif_btf_log_subtest(bool bad_btf) res = load_btf(&opts, true); ASSERT_EQ(res, -ENOSPC, "half_log_fd"); ASSERT_EQ(strlen(logs.buf), 24, "log_fixed_25"); + snprintf(op_name, sizeof(op_name), "log_fixed"); ASSERT_STRNEQ(logs.buf, logs.reference, 24, op_name); /* validate rolling verifier log logic: try all variations of log buf -- 2.34.1