Unverified Commit b28aab59 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!15593 io_uring: prevent opcode speculation 

Merge Pull Request from: @ci-robot 
 
PR sync from: Long Li <leo.lilong@huawei.com>
https://mailweb.openeuler.org/archives/list/kernel@openeuler.org/message/FFC6NHCLER7IIZ5UMGNIRHXLYZI66EK7/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBSVZU 
 
Link:https://gitee.com/openeuler/kernel/pulls/15593

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents ddf67b14 a82353e4

io_uring/io_uring.c

+2 −0
Original line number Diff line number Diff line
@@ -2173,6 +2173,8 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, 
		req->opcode = 0;

		return io_init_fail_req(req, -EINVAL);

	}

	opcode = array_index_nospec(opcode, IORING_OP_LAST);



	def = &io_issue_defs[opcode];

	if (unlikely(sqe_flags & ~SQE_COMMON_FLAGS)) {

		/* enforce forwards compatibility on users */