From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2A0711993BD; Fri, 20 Jun 2025 16:25:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750436756; cv=none; b=imFEHIFL55t5TnQw+JhYxBFFtEHwOR7ZrC289yHHq07UNwTpWKbt7uzz3Wx4aKuqBuW1xpyIqhqHPGgB5Kv3zRvF3AdK4jNtx+0oV6/6mbij98fK5xfH4CZ9Y+Rbel5yWY7W6jo9/41G747jAjC5JcyuipGJV4h3bHRSeYDVUDA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750436756; c=relaxed/simple; bh=QV38l64tcsLdGVk2CfMtQcOWhnNHkh4ogMmcRq53Bb8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HsO7tKhXUl/o6qzHmY9qneI8mXpNq4S4fv0osLXAmhYch2QrIZ1Ds1Giyy2cvX4txsVvq9FDb0qTYzYq/aX+5Pw8rDSoB1u6H33CR/bnB+4tPHH5ona9noAyH80tVKEDbYq5SHqXfXgdkUGBKInd9/7KVOqIdmpIlNCNRKhkVzs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jwIaSxA1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jwIaSxA1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF14CC4CEE3; Fri, 20 Jun 2025 16:25:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750436755; bh=QV38l64tcsLdGVk2CfMtQcOWhnNHkh4ogMmcRq53Bb8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=jwIaSxA1OlN4ovHjBcPq+CFc9RGfy/Vg+8Xc0eLFPhjU/IbQj12qLYhw3q2OVqBd5 exu1XN4YOQ8zMcFF8KJ8YztWlggePk3VtK8lERTRvlsPKtMmLHgD59Az2I3r1QIwYP jUUkXgOQRG9SjExrPxpKahGsMt4taBZfLJtEjxv7m5RCNzQptljzrdvRKq8WcmF6+y YdrcXWBWftACz6y04CjoGtuBMyT6VboeJsFgHD48Qa0YlPTQefATkQ1y8LMT/lOYdv 3cNcVLmKFzqnocxaCn2U5cYcu7jaKXV+RmP0y5Nv5LUWuAXL8Mpr3B8e2dt8qPQlF1 CwbLKFoX/SzbQ== Message-ID: Date: Fri, 20 Jun 2025 17:25:51 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH bpf-next v4 1/2] bpftool: Use appropriate permissions for map access To: Slava Imameev , ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, shuah@kernel.org, bpf@vger.kernel.org Cc: martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, mykolal@fb.com, justin.deschamp@crowdstrike.com, mark.fontana@crowdstrike.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org References: <20250620151812.13952-1-slava.imameev@crowdstrike.com> From: Quentin Monnet Content-Language: en-GB In-Reply-To: <20250620151812.13952-1-slava.imameev@crowdstrike.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 2025-06-21 01:18 UTC+1000 ~ Slava Imameev > Modify several functions in tools/bpf/bpftool/common.c to allow > specification of requested access for file descriptors, such as > read-only access. > > Update bpftool to request only read access for maps when write > access is not required. This fixes errors when reading from maps > that are protected from modification via security_bpf_map. > > Signed-off-by: Slava Imameev Reviewed-by: Quentin Monnet Thanks!