From nobody Thu Dec 18 07:52:07 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF128C77B6E for ; Fri, 14 Apr 2023 14:48:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231144AbjDNOsS (ORCPT ); Fri, 14 Apr 2023 10:48:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231234AbjDNOsC (ORCPT ); Fri, 14 Apr 2023 10:48:02 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F7007DB6; Fri, 14 Apr 2023 07:48:00 -0700 (PDT) Date: Fri, 14 Apr 2023 14:47:56 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1681483676; h=from:from:sender:sender:reply-to: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=GyQpTxd1zzamu2vNd/KzheAQNFpYlN2xXq44JyXZpu8=; b=J0aPfTtYtSxRqUgLOTrmaSZ+6R3YfCVHmnciKqLgd7LAHuxEiTf6WiQYJnqyO9SrktS9yA VNpQsjwDw/rL+1iFecuNQHvMoVyCKUiJ6nRzbLAa1NKqfEqFalNPKZnw6XOORj7GIYR7VW iofkqE7A+vhLK6cYmfachkFAg8AHg8pi5IrvpScGXTxb0lsh6jEZraD14hLJcP/LKTHqBO qR5N3imPZ6GjmRJ4GJZsgrTrR9hsaA5M+Y1dwYV4Ej0hGyb5GjYTuQlA9vpqropz/8D7j+ tAo6RraNciDIS3lt3T5SObruA7htb7N6ek4E0cCtgcDTXVw3ZaMAdSzscDhWxQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1681483676; h=from:from:sender:sender:reply-to: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=GyQpTxd1zzamu2vNd/KzheAQNFpYlN2xXq44JyXZpu8=; b=z2+X11UFvqvoFJYiosJrk0Rf5e7YLskr11TtumuApR05wf+7hXJR4TerBQTJNf055nWXHT T9GpqVkXRvp4weBA== From: "tip-bot2 for Josh Poimboeuf" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: objtool/core] objtool: Add stackleak instrumentation to uaccess safe list Cc: Josh Poimboeuf , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <42e9b487ef89e9b237fd5220ad1c7cf1a2ad7eb8.1681320562.git.jpoimboe@kernel.org> References: <42e9b487ef89e9b237fd5220ad1c7cf1a2ad7eb8.1681320562.git.jpoimboe@kernel.org> MIME-Version: 1.0 Message-ID: <168148367644.404.15894767923207222447.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the objtool/core branch of tip: Commit-ID: 7f530fba1123edcad00d59e1a73019814935f0c1 Gitweb: https://git.kernel.org/tip/7f530fba1123edcad00d59e1a73019814= 935f0c1 Author: Josh Poimboeuf AuthorDate: Wed, 12 Apr 2023 10:29:35 -07:00 Committer: Peter Zijlstra CommitterDate: Fri, 14 Apr 2023 16:08:27 +02:00 objtool: Add stackleak instrumentation to uaccess safe list If a function has a large stack frame, the stackleak plugin adds a call to stackleak_track_stack() after the prologue. This function may be called in uaccess-enabled code. Add it to the uaccess safe list. Fixes the following warning: vmlinux.o: warning: objtool: kasan_report+0x12: call to stackleak_track_s= tack() with UACCESS enabled Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/42e9b487ef89e9b237fd5220ad1c7cf1a2ad7eb8.16= 81320562.git.jpoimboe@kernel.org --- tools/objtool/check.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 9440b07..4c8ef81 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1279,6 +1279,8 @@ static const char *uaccess_safe_builtin[] =3D { "__ubsan_handle_type_mismatch_v1", "__ubsan_handle_shift_out_of_bounds", "__ubsan_handle_load_invalid_value", + /* STACKLEAK */ + "stackleak_track_stack", /* misc */ "csum_partial_copy_generic", "copy_mc_fragile",