Re: [syzbot] KASAN: use-after-free Read in __cpuhp_state_remove_instance

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On 4/19/21 8:41 AM, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 470ec4ed8c91b4db398ad607c700e9ce88365202
> Author: Jens Axboe <axboe@xxxxxxxxx>
> Date:   Fri Feb 26 17:20:34 2021 +0000
> 
>     io-wq: fix double put of 'wq' in error path
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11e89cc5d00000
> start commit:   cee407c5 Merge tag 'for-linus' of git://git.kernel.org/pub..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=8f67201de02a572b
> dashboard link: https://syzkaller.appspot.com/bug?extid=38769495e847cea2dcca
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=154e360ad00000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: io-wq: fix double put of 'wq' in error path


-- 
Jens Axboe




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