Re: [regression] Bug 216932 - io_uring with libvirt cause kernel NULL pointer dereference since 6.1.5

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On 1/16/23 6:17?AM, Linux kernel regression tracking (Thorsten Leemhuis) wrote:
> Hi, this is your Linux kernel regression tracker.
> 
> I noticed a regression report in bugzilla.kernel.org. As many (most?)
> kernel developer don't keep an eye on it, I decided to forward it by
> mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216932 :

Looks like:

commit 6d47e0f6a535701134d950db65eb8fe1edf0b575
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Wed Jan 4 08:52:06 2023 -0700

    block: don't allow splitting of a REQ_NOWAIT bio

got picked up by stable, but not the required prep patch:


commit 613b14884b8595e20b9fac4126bf627313827fbe
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Wed Jan 4 08:51:19 2023 -0700

    block: handle bio_split_to_limits() NULL return

Greg/team, can you pick the latter too? It'll pick cleanly for
6.1-stable, not sure how far back the other patch has gone yet.

-- 
Jens Axboe




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