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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDCE1C433F5 for ; Tue, 12 Apr 2022 00:49:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235953AbiDLAvs (ORCPT ); Mon, 11 Apr 2022 20:51:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243801AbiDLAuE (ORCPT ); Mon, 11 Apr 2022 20:50:04 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C67192FFFD; Mon, 11 Apr 2022 17:46:48 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 46F7DB819BC; Tue, 12 Apr 2022 00:46:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F90EC385A9; Tue, 12 Apr 2022 00:46:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1649724405; bh=6GVaGecbRy+VvYR3RKBqZV0ZW75XlfPpHJayGLK9VVw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Wj+arMzpkUiHAdZq4tWyW84tuNhebbOmOJx+/zpYzDTsXIzrE6nJLwFvYgz0RUtFt iOPw6Nm8gIbIkf/AIoruVmiThZqTWkXqi8WhnhIB2qwm+YsY9SaQj5mGNoBbgdYEMt /Z5CIrEqQ/Ipia9nQ/SHd1FV1GCHUwuwOWxxnqi4oKrhNjnezMi1AEpGMBGuQvU7kP UwkwbNKeW6ZeFcs6wpTLQH26jTNBKOG7IJ/a/sP1JMxU/gKY7LKZoJSw2FBSpKHp97 7wbr3XRoILVEbjy783B2WBXCWyPXamYVuBT1tuv2qlcqUCAGCc1gVjksb/YVV46yUx SsLE9ruslTC/g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Pavel Begunkov , Jens Axboe , Sasha Levin , io-uring@vger.kernel.org Subject: [PATCH AUTOSEL 5.17 47/49] io_uring: use nospec annotation for more indexes Date: Mon, 11 Apr 2022 20:44:05 -0400 Message-Id: <20220412004411.349427-47-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412004411.349427-1-sashal@kernel.org> References: <20220412004411.349427-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pavel Begunkov [ Upstream commit 4cdd158be9d09223737df83136a1fb65269d809a ] There are still several places that using pre array_index_nospec() indexes, fix them up. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/b01ef5ee83f72ed35ad525912370b729f5d145f4.1649336342.git.asml.silence@gmail.com Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/io_uring.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index d203bbb7b965..4ba3ae56835d 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -8606,7 +8606,7 @@ static int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags) bool needs_lock = issue_flags & IO_URING_F_UNLOCKED; struct io_fixed_file *file_slot; struct file *file; - int ret, i; + int ret; io_ring_submit_lock(ctx, needs_lock); ret = -ENXIO; @@ -8619,8 +8619,8 @@ static int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags) if (ret) goto out; - i = array_index_nospec(offset, ctx->nr_user_files); - file_slot = io_fixed_file_slot(&ctx->file_table, i); + offset = array_index_nospec(offset, ctx->nr_user_files); + file_slot = io_fixed_file_slot(&ctx->file_table, offset); ret = -EBADF; if (!file_slot->file_ptr) goto out; @@ -8676,8 +8676,7 @@ static int __io_sqe_files_update(struct io_ring_ctx *ctx, if (file_slot->file_ptr) { file = (struct file *)(file_slot->file_ptr & FFS_MASK); - err = io_queue_rsrc_removal(data, up->offset + done, - ctx->rsrc_node, file); + err = io_queue_rsrc_removal(data, i, ctx->rsrc_node, file); if (err) break; file_slot->file_ptr = 0; @@ -9351,7 +9350,7 @@ static int __io_sqe_buffers_update(struct io_ring_ctx *ctx, i = array_index_nospec(offset, ctx->nr_user_bufs); if (ctx->user_bufs[i] != ctx->dummy_ubuf) { - err = io_queue_rsrc_removal(ctx->buf_data, offset, + err = io_queue_rsrc_removal(ctx->buf_data, i, ctx->rsrc_node, ctx->user_bufs[i]); if (unlikely(err)) { io_buffer_unmap(ctx, &imu); -- 2.35.1