diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2026-02-15 21:29:12 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-02-15 14:55:29 -0700 |
| commit | 7496e658a76a61758b20e27cea8abcfeafe3aec4 (patch) | |
| tree | eab09e682bd278b29cd695fe1b738e7b945f797c | |
| parent | 5d540e4508950c674d6feef1d95463d039bbf4f5 (diff) | |
io_uring/zcrx: check unsupported flags on import
The imoorted zcrx registration path checks for ZCRX_REG_IMPORT, as it
should, but doesn't reject any unsupported flags. Fix that.
Cc: stable@vger.kernel.org
Fixes: 00d91481279fb ("io_uring/zcrx: share an ifq between rings")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | io_uring/zcrx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index b24d1da2e1ca..dda863e5e8b7 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -677,6 +677,8 @@ static int import_zcrx(struct io_ring_ctx *ctx, return -EINVAL; if (reg->if_rxq || reg->rq_entries || reg->area_ptr || reg->region_ptr) return -EINVAL; + if (reg->flags & ~ZCRX_REG_IMPORT) + return -EINVAL; fd = reg->if_idx; CLASS(fd, f)(fd); |