io_uring: fix personality idr leak

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")
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 7d0be264527d60b77f82d8237ff743a3a68c5393..d961945cb332087a2e9760b34cab676de489a483 100644 (file)
--- 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) {