From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 108B2C3B186 for ; Mon, 10 Feb 2020 13:27:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DECEE2082F for ; Mon, 10 Feb 2020 13:27:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581341230; bh=IhO7+4+gxU3KVcljasvSNdPaZ+h364bd1dgtWTohQgo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XMwbCOyz9NrX0V732qovwXqoyrVtDF4P1IKMhAZ1rOp/Kn/HdfLLXnhdjgUMO2Gqx R6YC29AyW3XZu/EllghVml7f7QB4p+LZ8UafcuU+R39SV1kk33qIYs6cFqFqh9wdHZ 0sAVCsdMxv1eYo/Pmvwr7n8qMa0rVhl6NUh/7qJg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728458AbgBJMgi (ORCPT ); Mon, 10 Feb 2020 07:36:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:56446 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727860AbgBJMgh (ORCPT ); Mon, 10 Feb 2020 07:36:37 -0500 Received: from localhost (unknown [209.37.97.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DE6D12085B; Mon, 10 Feb 2020 12:36:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581338197; bh=IhO7+4+gxU3KVcljasvSNdPaZ+h364bd1dgtWTohQgo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ge4Lkadi7c87h7orhZu2SNfcnx0ObEcEovXUkbZTyosLssH4cjke134m5bVQg3B6g gFEtmLxi/0JmLs1nhNUu7HXXtComHWLmowuOgXaxLW9XSiG9Zij0E3OPAV4xnIiMdY 1uAHKWNG2ECutiUxH4k/JdZNVeuSGDhkQjPPoH8s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sam Ravnborg , "Dmitry V . Levin" , Rich Felker , libc-alpha@sourceware.org, Arnd Bergmann , "David S. Miller" , Sasha Levin Subject: [PATCH 5.4 001/309] sparc32: fix struct ipc64_perm type definition Date: Mon, 10 Feb 2020 04:29:17 -0800 Message-Id: <20200210122406.247744502@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200210122406.106356946@linuxfoundation.org> References: <20200210122406.106356946@linuxfoundation.org> User-Agent: quilt/0.66 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Arnd Bergmann [ Upstream commit 34ca70ef7d3a9fa7e89151597db5e37ae1d429b4 ] As discussed in the strace issue tracker, it appears that the sparc32 sysvipc support has been broken for the past 11 years. It was however working in compat mode, which is how it must have escaped most of the regular testing. The problem is that a cleanup patch inadvertently changed the uid/gid fields in struct ipc64_perm from 32-bit types to 16-bit types in uapi headers. Both glibc and uclibc-ng still use the original types, so they should work fine with compat mode, but not natively. Change the definitions to use __kernel_uid32_t and __kernel_gid32_t again. Fixes: 83c86984bff2 ("sparc: unify ipcbuf.h") Link: https://github.com/strace/strace/issues/116 Cc: # v2.6.29 Cc: Sam Ravnborg Cc: "Dmitry V . Levin" Cc: Rich Felker Cc: libc-alpha@sourceware.org Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- arch/sparc/include/uapi/asm/ipcbuf.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/sparc/include/uapi/asm/ipcbuf.h b/arch/sparc/include/uapi/asm/ipcbuf.h index 9d0d125500e24..084b8949ddff6 100644 --- a/arch/sparc/include/uapi/asm/ipcbuf.h +++ b/arch/sparc/include/uapi/asm/ipcbuf.h @@ -15,19 +15,19 @@ struct ipc64_perm { - __kernel_key_t key; - __kernel_uid_t uid; - __kernel_gid_t gid; - __kernel_uid_t cuid; - __kernel_gid_t cgid; + __kernel_key_t key; + __kernel_uid32_t uid; + __kernel_gid32_t gid; + __kernel_uid32_t cuid; + __kernel_gid32_t cgid; #ifndef __arch64__ - unsigned short __pad0; + unsigned short __pad0; #endif - __kernel_mode_t mode; - unsigned short __pad1; - unsigned short seq; - unsigned long long __unused1; - unsigned long long __unused2; + __kernel_mode_t mode; + unsigned short __pad1; + unsigned short seq; + unsigned long long __unused1; + unsigned long long __unused2; }; #endif /* __SPARC_IPCBUF_H */ -- 2.20.1