From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2888441-1522260769-2-1047871371567645808 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1522260768; b=LYEDJCnuQrW7Kp1D3M4V8S0B9OV9PLNdsJI8WhREQaXakUh HNDL12V+HU8W4MR7iHiQfAmJu/xBk87CAycRgGVSgeAWd3JtSklzU36Kvf9I4+jY gFYzU3KIby0uYJBaDuYdGnIE2M+ULO/H1xF8vVwzViqLSduUMnsYPYBO3kLlGqdZ 7XgFJmHP5CMgO4HI6N4a+woDgVDFI3XFefWVuaAd8Ow18TEAY6OkCZYIouQ/jfWi DKxSYRiwzbYoq0ryabei3Zfn8AJ358EYita7iriDG5bRxyhFeiS2zullZX28ngq1 +9YQEXcUTjbkMcp7NhZoRDBdNTxYqGDUKKJNPlw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:in-reply-to:references:sender:list-id; s=arctest; t=1522260768; bh=nBqJ3uYJd/XArunoPy5x2+aC5xNRvVMJz8W 3ubjGz+8=; b=cGNSTyAimc8HB4m2yUFzrQPPl9uaPLRyhKXPdoBa/3bMthqjUy9 0YVOvTMAor3KtFNmSdq/hdgwcXn+hAIgnP0xZkkobv10heDc9Veu3nPZodcuLX5k lnm94QOTuFoFFn7pCFLJGksAHl/Z+hWpy3ihp7P5KHQaot7h0OeR2NryMfdRXTLe 4vvRP7wGW3HpNOFCq+oQ9Apg29gdZe+qZHlqaGQtVuFKuejTIwZyY/q/AhodDO51 ragzwk9yvaUyMFp5qPE3hANRRDfcysshhjN3vtELHODVxCUE++oOmj8Pm1/JSbHQ HVI5rGMRow3rEuAAnKHad8RmhxvYLcnOeXA== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=s-opensource.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=s-opensource.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-75 state=0 Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=s-opensource.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=s-opensource.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-75 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfNKLrDrcMjFKlMgWUiArDI71nxjc264yEpCbREtn0EPAo+n52ggYxfzawN3FUm6Pn5IF4MPuPRXu4XmWfNZFeM/sJaWkDRDezioXuFI8Fg1KR6keO4ps c8WjqQp3u37twJMSC4rxx4ckYIhmKVoTDYClUCqHLHjOzRW/c8jMgljVnAXc2/nXeDAsAShrKrUZ2kvZazOwUXcKzLSoCiZ8mNlV2NuGnSQNJe9pE6bhenlC X-CM-Analysis: v=2.3 cv=NPP7BXyg c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=v2DPQv5-lfwA:10 a=AUd_NHdVAAAA:8 a=QyXUC8HyAAAA:8 a=vQBBkBfzAAAA:8 a=yMhMjlubAAAA:8 a=nyPMeuHwuaWql16yYm4A:9 a=NGXS0kB0m_rannUenejW:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752606AbeC1SMr (ORCPT ); Wed, 28 Mar 2018 14:12:47 -0400 Received: from osg.samsung.com ([64.30.133.232]:42241 "EHLO osg.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752318AbeC1SMq (ORCPT ); Wed, 28 Mar 2018 14:12:46 -0400 X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" From: Mauro Carvalho Chehab To: Linux Media Mailing List , stable@vger.kernel.org Cc: Hans Verkuil , Mauro Carvalho Chehab , Linux Kernel Mailing List , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH for v3.18 07/18] media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32 Date: Wed, 28 Mar 2018 15:12:26 -0300 Message-Id: <6e6f38fc8542cf41fffcd3067026c4f015564544.1522260310.git.mchehab@s-opensource.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: References: In-Reply-To: References: Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Hans Verkuil commit 8ed5a59dcb47a6f76034ee760b36e089f3e82529 upstream. The struct v4l2_plane32 should set m.userptr as well. The same happens in v4l2_buffer32 and v4l2-compliance tests for this. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 47 ++++++++++++++++----------- 1 file changed, 28 insertions(+), 19 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c index b7dd98168a68..a27fd9105948 100644 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -287,19 +287,24 @@ static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __ sizeof(up->data_offset))) return -EFAULT; - if (memory == V4L2_MEMORY_USERPTR) { + switch (memory) { + case V4L2_MEMORY_MMAP: + case V4L2_MEMORY_OVERLAY: + if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset, + sizeof(up32->m.mem_offset))) + return -EFAULT; + break; + case V4L2_MEMORY_USERPTR: if (get_user(p, &up32->m.userptr)) return -EFAULT; up_pln = compat_ptr(p); if (put_user((unsigned long)up_pln, &up->m.userptr)) return -EFAULT; - } else if (memory == V4L2_MEMORY_DMABUF) { + break; + case V4L2_MEMORY_DMABUF: if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(up32->m.fd))) return -EFAULT; - } else { - if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset, - sizeof(up32->m.mem_offset))) - return -EFAULT; + break; } return 0; @@ -308,22 +313,32 @@ static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __ static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32, enum v4l2_memory memory) { + unsigned long p; + if (copy_in_user(up32, up, 2 * sizeof(__u32)) || copy_in_user(&up32->data_offset, &up->data_offset, sizeof(up->data_offset))) return -EFAULT; - /* For MMAP, driver might've set up the offset, so copy it back. - * USERPTR stays the same (was userspace-provided), so no copying. */ - if (memory == V4L2_MEMORY_MMAP) + switch (memory) { + case V4L2_MEMORY_MMAP: + case V4L2_MEMORY_OVERLAY: if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset, sizeof(up->m.mem_offset))) return -EFAULT; - /* For DMABUF, driver might've set up the fd, so copy it back. */ - if (memory == V4L2_MEMORY_DMABUF) + break; + case V4L2_MEMORY_USERPTR: + if (get_user(p, &up->m.userptr) || + put_user((compat_ulong_t)ptr_to_compat((__force void *)p), + &up32->m.userptr)) + return -EFAULT; + break; + case V4L2_MEMORY_DMABUF: if (copy_in_user(&up32->m.fd, &up->m.fd, sizeof(up->m.fd))) return -EFAULT; + break; + } return 0; } @@ -383,6 +398,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user } else { switch (kp->memory) { case V4L2_MEMORY_MMAP: + case V4L2_MEMORY_OVERLAY: if (get_user(kp->m.offset, &up->m.offset)) return -EFAULT; break; @@ -396,10 +412,6 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user kp->m.userptr = (unsigned long)compat_ptr(tmp); } break; - case V4L2_MEMORY_OVERLAY: - if (get_user(kp->m.offset, &up->m.offset)) - return -EFAULT; - break; case V4L2_MEMORY_DMABUF: if (get_user(kp->m.fd, &up->m.fd)) return -EFAULT; @@ -456,6 +468,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user } else { switch (kp->memory) { case V4L2_MEMORY_MMAP: + case V4L2_MEMORY_OVERLAY: if (put_user(kp->m.offset, &up->m.offset)) return -EFAULT; break; @@ -463,10 +476,6 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user if (put_user(kp->m.userptr, &up->m.userptr)) return -EFAULT; break; - case V4L2_MEMORY_OVERLAY: - if (put_user(kp->m.offset, &up->m.offset)) - return -EFAULT; - break; case V4L2_MEMORY_DMABUF: if (put_user(kp->m.fd, &up->m.fd)) return -EFAULT; -- 2.14.3