From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-188.mta0.migadu.com (out-188.mta0.migadu.com [91.218.175.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A08425B0BD for ; Sat, 13 Jun 2026 01:11:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.188 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781313099; cv=none; b=XvB6pS40rLy8s4f3sWOrs4BAXNrQSRObDkBwBMI51aYzmf+vGbX7z/KZ4VQxrBa+UAvL2BL5bRd9YotngQBWW6izsy1yqV4jzSqPShGfQJ5sxud9dv1r9x9MLRs1rp88/XSp/FsIK4glJWoKCgNlnCtjZypF8CYl8Ta6WbqGr3E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781313099; c=relaxed/simple; bh=3kPALoqciAvx3DHaPPfs5j5t9c/xeTNCPkJPgVQBJKo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UUY+P6tVwiWq26UB2qFdc3f5DIIvA7oLeYLMSBHKyRqtenlsAkCLoGVAzuLCmcmCYEwPbAzpUEUPOF/8iGpTpH70yVukmI+9qenpn70+XnkHNQJFeNdZUSwUzEG1G/bwPd9MWawH5ewwYVnSUq1MLQZM2uAnQNgtIRA28Q1JkWI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=FCZkdplL; arc=none smtp.client-ip=91.218.175.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="FCZkdplL" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1781313095; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=84+X1Q0jO7Re73KFOwXuIPKLl/X31z7M7p9DFtbZB5s=; b=FCZkdplLoWoDhnnXO9ooFuhPvAjAKXbBRnV1zIMKh2nC7GUNzb4MD7xJEz0LLHFeGlscv4 vqoCiSetjs7TBOLsOSLraj973gOQx+w0vkFb5dW+JhwDhta55c1CwbBXRPxXim4CHN1VQe 6UiyLJjLKSV10xqRPkXLJLaKn38BVgw= Date: Fri, 12 Jun 2026 18:11:26 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH bpf-next v2 6/8] selftests/bpf: Initialize operation name before use To: Leo Yan , 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 References: <20260602-tools_build_fix_zero_init_bpf_only-v2-0-c76e5250ea1c@arm.com> <20260602-tools_build_fix_zero_init_bpf_only-v2-6-c76e5250ea1c@arm.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Ihor Solodrai In-Reply-To: <20260602-tools_build_fix_zero_init_bpf_only-v2-6-c76e5250ea1c@arm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 6/2/26 7:47 AM, Leo Yan wrote: > 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 c01c0114af1b7476d27885ce380d90400a4bdc89..4542bb586d723b8fda2faf8261066f16102c60c0 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"); > + strscpy(op_name, "log_fixed", sizeof(op_name)); Acked-by: Ihor Solodrai > ASSERT_STRNEQ(logs.buf, logs.reference, 24, op_name); > > /* validate rolling verifier log logic: try all variations of log buf >