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| author |  Denis Efremov <efremov@linux.com>
| 2020-06-05 12:32:03 +0300 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2020-06-08 09:39:13 -0600 |
| commit | a8c73c1a614f6da6c0b04c393f87447e28cb6de4 (patch) | |
| tree | c2e0b30c6d769e024de229012f8dcf7854353270 /fs/io_uring.c | |
| parent | io_uring: validate the full range of provided buffers for access (diff) | |
| download | linux-a8c73c1a614f6da6c0b04c393f87447e28cb6de4.tar.gz linux-a8c73c1a614f6da6c0b04c393f87447e28cb6de4.tar.bz2 linux-a8c73c1a614f6da6c0b04c393f87447e28cb6de4.zip | |
io_uring: use kvfree() in io_sqe_buffer_register()
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 <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200605093203.40087-1-efremov@linux.com
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 5431b182b6b0..5e36e78e766e 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -7171,8 +7171,8 @@ 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, |