mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-01 22:54:01 +00:00
io_uring: mem-account pbuf buckets
commit cc18cc5e82
upstream.
Potentially, someone may create as many pbuf bucket as there are indexes
in an xarray without any other restrictions bounding our memory usage,
put memory needed for the buckets under memory accounting.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d34c452e45793e978d26e2606211ec9070d329ea.1659622312.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
ee57f8bba8
commit
2905cd48c1
1 changed files with 1 additions and 1 deletions
|
@ -5520,7 +5520,7 @@ static int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags)
|
||||||
|
|
||||||
bl = io_buffer_get_list(ctx, p->bgid);
|
bl = io_buffer_get_list(ctx, p->bgid);
|
||||||
if (unlikely(!bl)) {
|
if (unlikely(!bl)) {
|
||||||
bl = kzalloc(sizeof(*bl), GFP_KERNEL);
|
bl = kzalloc(sizeof(*bl), GFP_KERNEL_ACCOUNT);
|
||||||
if (!bl) {
|
if (!bl) {
|
||||||
ret = -ENOMEM;
|
ret = -ENOMEM;
|
||||||
goto err;
|
goto err;
|
||||||
|
|
Loading…
Reference in a new issue