From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f5.google.com (mail-pj2-f5.google.com [74.125.227.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A7A04398FA for ; Mon, 10 Aug 2026 18:35:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786386957; cv=none; b=tt9/diRgNQyS7MoWk8jGRTIwVydv6MCSE55gWKg552R/g9wR+VdptyCSE0ySM4ErJQHecvgX7JMHKyHNlgdOJxWPaBAh9gIRvImvKqRkj7y26K30LFxq0o1TT0PNklWQOt9xNI8OVLeCsKnElj0z+3BQHN3CMYm5rF9k9SkQckk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786386957; c=relaxed/simple; bh=DO3s9BCniAoxyDO1HNnd1VAYEwXmmI5rYbE75SfLv24=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=o2hbvD8qrMrEePAuhjsao4pYo28lMkcLUELgXzpHaHzFRw0Ktp5eY6DEzx2Bczrk2378yWhfzdZAte7OngMVEzs41H8jRKb4DlRMieKyQVrv8Y1UfoXDWZwqFUEPsUhhebkIuzzHsv4nkOFMSFi9OwKzE1qIOnK1zMcLmCWQeZk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=b5T4dWwD; arc=none smtp.client-ip=74.125.227.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b5T4dWwD" Received: by mail-pj2-f5.google.com with SMTP id d9443c01a7336-2d0344e1ce9so11051125ad.1 for ; Mon, 10 Aug 2026 11:35:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1786386956; x=1786991756; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=+o4vST46CiWorWhpB33vRXmQWSzdNOY7/3XtHUVi9yg=; b=b5T4dWwD5LaygCgf4bAFvOY/L/RBPVMdiR5ngNS6FejfJo1cKu4lnDzjiUp2knR+8p vDGPP57zZ2Y0nUbJiDc3eVzW39ValQZugD7JkIgQd/nkyOFRajTf26fUGD3P6+/dAfsT FnBw6RHKlFa/vlDxaP8eQRzRRxnQZemGqPLTShpFjuLnXwcYFaRNaVxQyzoxZRAajKVV NJxUe0Ywq7iem8A2evgChAaysds/brgnheBlqEYzecZk5SXN7qf9G2dh44cWKrfS2cpC sk6TudS7iPk8azU2nQp7ZqQ0/ociQfYCMkl9wNTlo3Gf4/ZZ8saw+j9qJRDhSwZT4ky8 ys2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786386956; x=1786991756; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=+o4vST46CiWorWhpB33vRXmQWSzdNOY7/3XtHUVi9yg=; b=ZOXen0lAUGq1OKafkrqc4H6TmlP9xM/35HAcB8SvupDLZ+6Uzfc4Xt6b1bWij9wsPa jbRUKLrsScn5eYOcvI+3Ni06qF2Fmom+eRE2w4gJQkniPKFDlD3C+fGVGjh6FH/Zz1H7 sd1jNuUjqQwTKZjq0Q79nTDZUdQSucQ1hCeJNH7QGMtcstT7sS39UsjSImjY8x1BUFjP SbfUhFD9emHw5MSr3N3OJHUiyjIJL8OBbCaUoMORr46/TrUxndztTQ6J9uY4K7qobDJj 0Ak/jPWstcwIcYJ5rKsi/DCqUYGpoJ/rbBEN4Io8YDCvuT2UqJVL41hx2ug/ViqB+rWv s4vQ== X-Forwarded-Encrypted: i=1; AHgh+RonULDI7g/ssG7KuPezCAR0i2w8vnLBKoSYvONANVlOjcISJ2zyqWgnaVCZ9XzkD7YhNdL7ZKU=@vger.kernel.org X-Gm-Message-State: AOJu0YxmuKXq1Ff3Wk5M0w0xYTDwP8PkK0/esfcd4PoaTU+kEyl8GY6/ 9jsghgEQuxrFFC0Tn2zPs6+SlelkH+tV2hzYLyILj5ePCe3up1VxogcISxJ42/qo X-Gm-Gg: AR+sD13tUQoTZJleS8aFmhD5PESAbCorENa/LFTKEfXRBv1xA90MwB8/29ajbLM2/6z F9ZiIjCLz43TS8TxDEajh/h5nE26YMT1JXc4tqYCTU4v0sgKHv2OnDwL+e557DIMlq3ZGWbWaxL BTeGkhwbIJSpdjhKulqCtvBcNkueVgLNmttHXLztlK13TpKdhyDs4Mx25ItUaADTeA0WAv/7M74 schqbAEyPP6dHt+6Y2mk0aDEc4ptI2BLavG2uYmR33I+e92xhqU98nY4qCLCCzy1fXBFJskqXnT 3ZGST0ur4gpPbDY9ipRClpLR1O9oBHQXQRTXqG1em/QMvp3zx2KRvROC9ruKCGN3m+UoFfUx6uE FPb3rZhetPf+/0XKSHTLoMOkyJmabCPjVIG6HnL31gzYTmOXKq51iK03+L2ef1Y+YjRnzYVUdBE riOVajz1bQydeIC71AS91UBZm0dFVBokbTR9Ir1g1PbUrntUpvGNCwHIqeQmbcJ1rL X-Received: by 2002:a17:902:f70f:b0:2cc:a977:4260 with SMTP id d9443c01a7336-2d2a8fb8adcmr279979815ad.21.1786386955834; Mon, 10 Aug 2026 11:35:55 -0700 (PDT) Received: from localhost ([2a03:2880:2ff:41::]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d14dbea7e0sm39841335ad.53.2026.08.10.11.35.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Aug 2026 11:35:55 -0700 (PDT) Date: Mon, 10 Aug 2026 11:35:33 -0700 From: Stanislav Fomichev To: Mahe Tardy Cc: bpf@vger.kernel.org, andrew+netdev@lunn.ch, andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, edumazet@google.com, john.fastabend@gmail.com, kuba@kernel.org, liamwisehart@meta.com, martin.lau@linux.dev, pabeni@redhat.com, song@kernel.org, netdev@vger.kernel.org, ameryhung@gmail.com, kuniyu@google.com, memxor@gmail.com, jiayuan.chen@linux.dev Subject: Re: [PATCH bpf-next v5 4/5] selftests/bpf: Test forbidden bpf_ksock_send() LSM attach Message-ID: References: <20260807171532.125149-1-mahe.tardy@gmail.com> <20260807171532.125149-5-mahe.tardy@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260807171532.125149-5-mahe.tardy@gmail.com> On 08/07, Mahe Tardy wrote: > The bpf_ksock_send() kfunc eventually calls security_socket_sendmsg(), > thus creating a possible recursion if a program calling the kfunc is > attached on that specific hook. A filter is added on the kfunc > registration to prevent that at load time from the verifier. This test > exercises that the verifier will reject such program on that attach > point. > > Signed-off-by: Mahe Tardy Acked-by: Stanislav Fomichev