From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 CB0F11F7095 for ; Mon, 10 Feb 2025 12:07:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739189273; cv=none; b=XczNx1c5NUlCf4bFxj3O8IPYaO+in2rJjK98nGreDEosNm5OqjDt6tgZuZnJznXVE+uSPS3To8zwRFZaTq/7+foZqJPBgikTakkX2Zr4kylqnbNFtXmuf96cF+C1ao/+cI1OtSer6efD4O475nWaQd8xiDWj7mpGNPIuBk70x50= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739189273; c=relaxed/simple; bh=BtQ9N1MvirivDuLCQDNFtrplYfp2RM+U8t6UQeof8HE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tKFEPSj7HqRRTgreXbGnqXLqQrD4YQspXkURimUMKj7sCnTTQglJ/TLPmlQVHeqLnUUxMeqM0naQnoxi+gmXusAj0Hnoe2J2Rq/Flz6LH04uFDMLIzeiTxT4uN3WcbgpvZYwz8qaaHqzZcFgcNCQ0ymKzIBTx9O2fvEif8Uhv/8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ThkpV+dc; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ThkpV+dc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739189270; 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: in-reply-to:in-reply-to:references:references; bh=TNwsmie5gRPqqyVCLb3IhqDqH4N/saJWdmlC5n8Dh5I=; b=ThkpV+dckxB0alb+QxrZSDg+GXbIo3+IrQ4OXNHuNAlx3y1EaYMJDb70NU4R5EWEOjJFng /ZwjTUY2fIR32mjgm/kve8NwWgQFuI0wrTW48zJ5YJbrCGGKsHoNmSfLqRmPmqn8VaHSj3 c3N+tPGEKR9R7XC/wL+LXgB9Za+Rrc8= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-240-jW7P-b8EOCOzDHiXADTIjw-1; Mon, 10 Feb 2025 07:07:49 -0500 X-MC-Unique: jW7P-b8EOCOzDHiXADTIjw-1 X-Mimecast-MFC-AGG-ID: jW7P-b8EOCOzDHiXADTIjw Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 98008195608E; Mon, 10 Feb 2025 12:07:45 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.45.224.113]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 811B8180035E; Mon, 10 Feb 2025 12:07:38 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Mon, 10 Feb 2025 13:07:19 +0100 (CET) Date: Mon, 10 Feb 2025 13:07:10 +0100 From: Oleg Nesterov To: Jiri Olsa Cc: Steven Rostedt , Masami Hiramatsu , Peter Zijlstra , Andrii Nakryiko , Kees Cook , Eyal Birger , stable@vger.kernel.org, Jann Horn , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-api@vger.kernel.org, x86@kernel.org, bpf@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Andy Lutomirski , Deepak Gupta , Stephen Rothwell Subject: Re: [PATCH bpf-next] uprobes: Harden uretprobe syscall trampoline check Message-ID: <20250210120710.GB32480@redhat.com> References: <20250209220515.2554058-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250209220515.2554058-1-jolsa@kernel.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 On 02/09, Jiri Olsa wrote: > > [1] https://lore.kernel.org/bpf/202502081235.5A6F352985@keescook/T/#m9d416df341b8fbc11737dacbcd29f0054413cbbf > Cc: Kees Cook > Cc: Eyal Birger > Cc: stable@vger.kernel.org > Reported-by: Jann Horn > Signed-off-by: Jiri Olsa > --- > arch/x86/kernel/uprobes.c | 14 +++++++++----- > 1 file changed, 9 insertions(+), 5 deletions(-) Reviewed-by: Oleg Nesterov