diff options
Diffstat (limited to 'io_uring/msg_ring.c')
| -rw-r--r-- | io_uring/msg_ring.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/io_uring/msg_ring.c b/io_uring/msg_ring.c index 7063ea7964e7..87b4d306cf1b 100644 --- a/io_uring/msg_ring.c +++ b/io_uring/msg_ring.c @@ -125,7 +125,11 @@ static int __io_msg_ring_data(struct io_ring_ctx *target_ctx, return -EINVAL; if (!(msg->flags & IORING_MSG_RING_FLAGS_PASS) && msg->dst_fd) return -EINVAL; - if (target_ctx->flags & IORING_SETUP_R_DISABLED) + /* + * Keep IORING_SETUP_R_DISABLED check before submitter_task load + * in io_msg_data_remote() -> io_msg_remote_post() + */ + if (smp_load_acquire(&target_ctx->flags) & IORING_SETUP_R_DISABLED) return -EBADFD; if (io_msg_need_remote(target_ctx)) @@ -245,7 +249,11 @@ static int io_msg_send_fd(struct io_kiocb *req, unsigned int issue_flags) return -EINVAL; if (target_ctx == ctx) return -EINVAL; - if (target_ctx->flags & IORING_SETUP_R_DISABLED) + /* + * Keep IORING_SETUP_R_DISABLED check before submitter_task load + * in io_msg_fd_remote() + */ + if (smp_load_acquire(&target_ctx->flags) & IORING_SETUP_R_DISABLED) return -EBADFD; if (!msg->src_file) { int ret = io_msg_grab_file(req, issue_flags); |