From cc609376e9a43166a2fba2aef6c5f9ea262ce722 Mon Sep 17 00:00:00 2001 From: Yi Xie Date: Tue, 14 Jul 2026 11:03:06 +0800 Subject: [PATCH] io_uring/fs: check unused sqe fields for unlinkat Zero check unused SQE fields addr3 and pad2 for unlinkat. They're not needed now, but could be used sometime in the future. Signed-off-by: Yi Xie Reviewed-by: Gabriel Krisman Bertazi Link: https://patch.msgid.link/20260714030306.64820-1-xieyi@kylinos.cn Signed-off-by: Jens Axboe --- io_uring/fs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/io_uring/fs.c b/io_uring/fs.c index d0580c754bf8..26ea841a22e7 100644 --- a/io_uring/fs.c +++ b/io_uring/fs.c @@ -110,7 +110,8 @@ int io_unlinkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) const char __user *fname; int err; - if (sqe->off || sqe->len || sqe->buf_index || sqe->splice_fd_in) + if (sqe->off || sqe->len || sqe->buf_index || sqe->splice_fd_in || + sqe->addr3 || sqe->__pad2[0]) return -EINVAL; if (unlikely(req->flags & REQ_F_FIXED_FILE)) return -EBADF; -- 2.47.3