Re: [PATCH] btrfs: fix a race in encoded read

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On Thu, Dec 12, 2024 at 10:14 AM Johannes Thumshirn
<Johannes.Thumshirn@xxxxxxx> wrote:
> It got recently force pushed, 34725028ec5500018f1cb5bfd55c669c7bbf1346
> it is now, sorry.

Yeah, this looks very similar and it should fix the bug as well. In
fact the fix part looks exactly the same, I just also changed the
slab/stack allocation while you changed the atomic/refcount. But these
are unrelated, IIUC. I actually planned to split it into two patches
but David told me it's not necessary and I should send it as it is.

Just nitpicking about your patch, the subject says simplify while I
don't really see any simplification.
Also it does not mention the UAF bug leading to crashes it fixes,
missing the Fixes: and CC: stable tags.

What do we do now?

--nX





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