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authorPavel Begunkov <asml.silence@gmail.com>2022-04-07 16:05:05 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-04-20 10:34:17 +0300
commitb8ed0f7531f30c7ab5ee5e83b704fecb86acf3dc (patch)
tree230ecf41d88a53b91dd9c42f7179d631f6ac49cd /fs
parent5218d5cc02833e9495bba401d6af7d7801fb22cc (diff)
downloadlinux-b8ed0f7531f30c7ab5ee5e83b704fecb86acf3dc.tar.xz
io_uring: use nospec annotation for more indexes
[ Upstream commit 4cdd158be9d09223737df83136a1fb65269d809a ] There are still several places that using pre array_index_nospec() indexes, fix them up. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/b01ef5ee83f72ed35ad525912370b729f5d145f4.1649336342.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index ca207e9a87cd..1bf1ea2cd8b0 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8489,7 +8489,7 @@ static int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags)
struct io_ring_ctx *ctx = req->ctx;
struct io_fixed_file *file_slot;
struct file *file;
- int ret, i;
+ int ret;
io_ring_submit_lock(ctx, !(issue_flags & IO_URING_F_NONBLOCK));
ret = -ENXIO;
@@ -8502,8 +8502,8 @@ 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;
@@ -8559,8 +8559,7 @@ 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;
@@ -9229,7 +9228,7 @@ 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);