diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-09-16 15:27:50 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-09-16 12:37:20 -0600 |
| commit | d7ae46b454eb05e3df0d46c2ac9c61416a4d9057 (patch) | |
| tree | ff7ece5f814d0c49002804a155014dc7f6959e5a | |
| parent | 01464ea405e13789bf4f14c7d4e9fa97f0885d46 (diff) | |
io_uring/zcrx: check all niovs filled with dma addresses
Add a warning if io_populate_area_dma() can't fill in all net_iovs, it
should never happen.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | io_uring/zcrx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index ef8d60b92646..0f15e0fa5467 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -77,6 +77,9 @@ static int io_populate_area_dma(struct io_zcrx_ifq *ifq, niov_idx++; } } + + if (WARN_ON_ONCE(niov_idx != area->nia.num_niovs)) + return -EFAULT; return 0; } |