From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 F2CC11DED5C; Wed, 19 Feb 2025 09:05:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739955908; cv=none; b=ZpFfnIy84kcQrcKsk7GuaeEghUSikzBsmSSaSOfQjoGQtP9qzMxUFEA53kiUqAb5L78LUW5p+Um6J9qBrAORqcRS+whHXMW5XLRmh+chz6gWQMEEGRWGgDWGR0UNhxaG0iCWqHhWuhf8xYe0+DPPUFT95pIK7kH0mgS0NEx4kdQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739955908; c=relaxed/simple; bh=NPLljSztM/Xrsc8jaM2p+VnhX2uWeU6/ik+wxKQZmzQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=hr9jpjAy9MIbt+0LltqfzOeK9nkD3QfT0BP0wummPeggXLmUoBmin6WblsjsRenehTbYufH2RTnK8lpgRIYZa+QXfCq460ei1GCy3Acv4k39WaLZ2Sqs8A0zr/UA7OTa9DE8+USmap8IYaSAOaAyQ7Ys8SeebAkbxK+Xm0pRrrQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SB5wgwIu; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="SB5wgwIu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1FF79C4CED1; Wed, 19 Feb 2025 09:05:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1739955907; bh=NPLljSztM/Xrsc8jaM2p+VnhX2uWeU6/ik+wxKQZmzQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SB5wgwIuERgvuSn7HUfyYE3JYjBUMEdQ8dwEdvqDN4p3iM8V+gwBT2RmpADoRgt6o NSIjzVc20qqFRbpRlXwo1djGtw9RycimylrN3T0c96rITn3JyAIGiZxhppK0XetqO9 wq/Gr4v4WQzQHaKm+QJb1LobCkaMcxsI+Jaz792o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Stefan=20N=C3=BCrnberger?= Subject: [PATCH 6.6 152/152] Revert "vfio/platform: check the bounds of read/write syscalls" Date: Wed, 19 Feb 2025 09:29:25 +0100 Message-ID: <20250219082556.058707261@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250219082550.014812078@linuxfoundation.org> References: <20250219082550.014812078@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Greg Kroah-Hartman This reverts commit 03844b1908114680ca35fa0a0aba3d906a6d78af. It had been committed multiple times to the tree, and isn't needed again. Link: https://lore.kernel.org/r/a082db2605514513a0a8568382d5bd2b6f1877a0.camel@cyberus-technology.de Reported-by: Stefan Nürnberger Signed-off-by: Greg Kroah-Hartman --- drivers/vfio/platform/vfio_platform_common.c | 10 ---------- 1 file changed, 10 deletions(-) --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -393,11 +393,6 @@ static ssize_t vfio_platform_read_mmio(s count = min_t(size_t, count, reg->size - off); - if (off >= reg->size) - return -EINVAL; - - count = min_t(size_t, count, reg->size - off); - if (!reg->ioaddr) { reg->ioaddr = ioremap(reg->addr, reg->size); @@ -479,11 +474,6 @@ static ssize_t vfio_platform_write_mmio( if (off >= reg->size) return -EINVAL; - - count = min_t(size_t, count, reg->size - off); - - if (off >= reg->size) - return -EINVAL; count = min_t(size_t, count, reg->size - off);