linux-kernel - Re: [syzbot] [io-uring?] KMSAN: uninit-value in io_rw

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Date: Mon, 12 Feb 2024 15:06:41 +0100
From: Alexander Potapenko <glider@...gle.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: syzbot <syzbot+0198afa90d8c29ef9557@...kaller.appspotmail.com>, 
	asml.silence@...il.com, io-uring@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [io-uring?] KMSAN: uninit-value in io_rw_fail (2)

> This was fixed a while back, not sure why an old kernel is being tested. But
> in any case, the result of this was just garbage in cqe->res for a request
> that was prematurely errored. Nothing to worry about. In any case:

Unfortunately KMSAN is broken at head, we're waiting for
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=558c04d9535d9d8911162db4d0d758f8f4cda37b
to reach mainline.