| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.1 55/98] io_uring: Fix __io_uring_register() false success | Date | Thu, 20 Jun 2019 19:57:22 +0200 |
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[ 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 -- 2.20.1
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