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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 B7FD1C282C0 for ; Fri, 25 Jan 2019 21:43:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F7DB218B0 for ; Fri, 25 Jan 2019 21:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729433AbfAYVnk (ORCPT ); Fri, 25 Jan 2019 16:43:40 -0500 Received: from s3.sipsolutions.net ([144.76.43.62]:42908 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728843AbfAYVnc (ORCPT ); Fri, 25 Jan 2019 16:43:32 -0500 Received: by sipsolutions.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92-RC4) (envelope-from ) id 1gn9G7-0006iF-Bj; Fri, 25 Jan 2019 22:43:31 +0100 From: Johannes Berg To: netdev@vger.kernel.org Cc: Al Viro , Robert O'Callahan , Johannes Berg Subject: [PATCH net 3/4] net: socket: fix SIOCGIFNAME in compat Date: Fri, 25 Jan 2019 22:43:19 +0100 Message-Id: <20190125214320.17685-4-johannes@sipsolutions.net> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190125214320.17685-1-johannes@sipsolutions.net> References: <20190125214320.17685-1-johannes@sipsolutions.net> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Johannes Berg As reported by Robert O'Callahan in https://bugzilla.kernel.org/show_bug.cgi?id=202273 reverting the previous changes in this area broke the SIOCGIFNAME ioctl in compat again (I'd previously fixed it after his previous report of breakage in https://bugzilla.kernel.org/show_bug.cgi?id=199469). This is obviously because I fixed SIOCGIFNAME more or less by accident. Fix it explicitly now by making it pass through the restored compat translation code. Cc: stable@vger.kernel.org Fixes: 4cf808e7ac32 ("kill dev_ifname32()") Reported-by: Robert O'Callahan Signed-off-by: Johannes Berg --- net/socket.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/socket.c b/net/socket.c index fbf80f9fb057..473ac8d7c54e 100644 --- a/net/socket.c +++ b/net/socket.c @@ -3029,6 +3029,7 @@ static int compat_ifreq_ioctl(struct net *net, struct socket *sock, case SIOCGIFTXQLEN: case SIOCGMIIPHY: case SIOCGMIIREG: + case SIOCGIFNAME: if (copy_in_user(uifr32, uifr, sizeof(*uifr32))) err = -EFAULT; break; @@ -3252,6 +3253,7 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCSIFTXQLEN: case SIOCBRADDIF: case SIOCBRDELIF: + case SIOCGIFNAME: case SIOCSIFNAME: case SIOCGMIIPHY: case SIOCGMIIREG: @@ -3266,7 +3268,6 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: case SIOCBONDCHANGEACTIVE: - case SIOCGIFNAME: return sock_do_ioctl(net, sock, cmd, arg); } -- 2.17.2