diff options
| author | Jens Axboe <axboe@kernel.dk> | 2025-09-18 15:45:41 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-25 11:13:48 +0200 |
| commit | 695673eb5711ee5eb1769481cf1503714716a7d1 (patch) | |
| tree | 914bc2af72345218ba9c2c1e75faf6e0375a6d90 | |
| parent | 93e9d0293d3b4c247873c19ffe9426154bb82b9e (diff) | |
io_uring/kbuf: drop WARN_ON_ONCE() from incremental length check
Partially based on commit 98b6fa62c84f2e129161e976a5b9b3cb4ccd117b upstream.
This can be triggered by userspace, so just drop it. The condition
is appropriately handled.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | io_uring/kbuf.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h index 2586a292dfb9..a3ad8aea45c8 100644 --- a/io_uring/kbuf.h +++ b/io_uring/kbuf.h @@ -143,7 +143,7 @@ static inline bool io_kbuf_commit(struct io_kiocb *req, struct io_uring_buf *buf; buf = io_ring_head_to_buf(bl->buf_ring, bl->head, bl->mask); - if (WARN_ON_ONCE(len > buf->len)) + if (len > buf->len) len = buf->len; buf->len -= len; if (buf->len) { |