* [PATCH] io_uring: fix personality idr leak
@ 2020-02-23 21:17 Jens Axboe
2020-02-24 10:16 ` Stefano Garzarella
0 siblings, 1 reply; 2+ messages in thread
From: Jens Axboe @ 2020-02-23 21:17 UTC (permalink / raw)
To: io-uring
We somehow never free the idr, even though we init it for every ctx.
Free it when the rest of the ring data is freed.
Fixes: 071698e13ac6 ("io_uring: allow registering credentials")
Signed-off-by: Jens Axboe <[email protected]>
---
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 7d0be264527d..d961945cb332 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6339,6 +6339,7 @@ static void io_ring_ctx_free(struct io_ring_ctx *ctx)
io_sqe_buffer_unregister(ctx);
io_sqe_files_unregister(ctx);
io_eventfd_unregister(ctx);
+ idr_destroy(&ctx->personality_idr);
#if defined(CONFIG_UNIX)
if (ctx->ring_sock) {
--
Jens Axboe
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] io_uring: fix personality idr leak
2020-02-23 21:17 [PATCH] io_uring: fix personality idr leak Jens Axboe
@ 2020-02-24 10:16 ` Stefano Garzarella
0 siblings, 0 replies; 2+ messages in thread
From: Stefano Garzarella @ 2020-02-24 10:16 UTC (permalink / raw)
To: Jens Axboe; +Cc: io-uring
On Sun, Feb 23, 2020 at 02:17:36PM -0700, Jens Axboe wrote:
> We somehow never free the idr, even though we init it for every ctx.
> Free it when the rest of the ring data is freed.
>
> Fixes: 071698e13ac6 ("io_uring: allow registering credentials")
> Signed-off-by: Jens Axboe <[email protected]>
>
> ---
Reviewed-by: Stefano Garzarella <[email protected]>
>
> diff --git a/fs/io_uring.c b/fs/io_uring.c
> index 7d0be264527d..d961945cb332 100644
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
> @@ -6339,6 +6339,7 @@ static void io_ring_ctx_free(struct io_ring_ctx *ctx)
> io_sqe_buffer_unregister(ctx);
> io_sqe_files_unregister(ctx);
> io_eventfd_unregister(ctx);
> + idr_destroy(&ctx->personality_idr);
>
> #if defined(CONFIG_UNIX)
> if (ctx->ring_sock) {
>
> --
> Jens Axboe
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-02-23 21:17 [PATCH] io_uring: fix personality idr leak Jens Axboe
2020-02-24 10:16 ` Stefano Garzarella
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