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io_uring/msg: initialise msg request opcode

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[ Upstream commit 9cc0bbdaba2a66ad90bc6ce45163b7745baffe98 ]

It's risky to have msg request opcode set to garbage, so at least
initialise it to nop. Later we might want to add a user inaccessible
opcode for such cases.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9afe650fcb348414a4529d89f52eb8969ba06efd.1743190078.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pavel Begunkov
2025-03-28 23:11:50 +00:00
committed by Greg Kroah-Hartman
parent bab0bd1389
commit 01677e7ee1
1 changed files with 1 additions and 0 deletions
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io_uring/msg_ring.c
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@@ -94,6 +94,7 @@ static int io_msg_remote_post(struct io_ring_ctx *ctx, struct io_kiocb *req,
kmem_cache_free(req_cachep, req);
return -EOWNERDEAD;
}
req->opcode = IORING_OP_NOP;
req->cqe.user_data = user_data;
io_req_set_res(req, res, cflags);
percpu_ref_get(&ctx->refs);