From ab2df991e5e280218099ff31cf96b51a6a38c86a Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Fri, 5 Jun 2020 12:32:03 +0300 Subject: [PATCH] io_uring: use kvfree() in io_sqe_buffer_register() commit a8c73c1a614f6da6c0b04c393f87447e28cb6de4 upstream. Use kvfree() to free the pages and vmas, since they are allocated by kvmalloc_array() in a loop. Fixes: d4ef647510b1 ("io_uring: avoid page allocation warnings") Signed-off-by: Denis Efremov Signed-off-by: Jens Axboe Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200605093203.40087-1-efremov@linux.com Signed-off-by: Greg Kroah-Hartman --- fs/io_uring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 2050100..7fa3cd3 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -3498,8 +3498,8 @@ static int io_sqe_buffer_register(struct io_ring_ctx *ctx, void __user *arg, ret = 0; if (!pages || nr_pages > got_pages) { - kfree(vmas); - kfree(pages); + kvfree(vmas); + kvfree(pages); pages = kvmalloc_array(nr_pages, sizeof(struct page *), GFP_KERNEL); vmas = kvmalloc_array(nr_pages, -- 2.7.4