[PATCH 5.1 55/98] io_uring: Fix __io_uring_register() false success

[ Upstream commit a278682dad37fd2f8d2f30d8e84e376a856ab472 ]

If io_copy_iov() fails, it will break the loop and report success, albeit partially completed operation.

Signed-off-by: Pavel Begunkov asml.silence@gmail.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- fs/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c index 4e32a033394c..e82adbf8adc1 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2506,7 +2506,7 @@ static int io_sqe_buffer_register(struct io_ring_ctx *ctx, void __user *arg,

ret = io_copy_iov(ctx, &iov, arg, i); if (ret) - break; + goto err;

/* * Don't impose further limits on the size and buffer