linux-kernel - Re: [syzbot] [net?] KMSAN: uninit-value in xfrm_state

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Message-ID: <CANp29Y4_pqfAvKJMi5X+vcsa+UXPR99i0U8OkreoHwnQMnL2ag@mail.gmail.com>
Date:   Tue, 20 Jun 2023 11:13:14 +0200
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     syzbot <syzbot+131cd4c6d21724b99a26@...kaller.appspotmail.com>
Cc:     anant.thazhemadam@...il.com, davem@...emloft.net,
        dvyukov@...gle.com, edumazet@...gle.com, glider@...gle.com,
        herbert@...dor.apana.org.au, icytxw@...il.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        pabeni@...hat.com, steffen.klassert@...unet.com,
        syzkaller-bugs@...glegroups.com, tobias@...ongswan.org,
        tonymarislogistics@...dex.com
Subject: Re: [syzbot] [net?] KMSAN: uninit-value in xfrm_state_find

On Tue, Jun 20, 2023 at 8:41 AM syzbot
<syzbot+131cd4c6d21724b99a26@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 3d776e31c841ba2f69895d2255a49320bec7cea6
> Author: Tobias Brunner <tobias@...ongswan.org>
> Date:   Tue May 9 08:59:58 2023 +0000
>
>     xfrm: Reject optional tunnel/BEET mode templates in outbound policies
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13eeaa4b280000
> start commit:   e4cf7c25bae5 Merge tag 'kbuild-fixes-v6.2' of git://git.ke..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2651619a26b4d687
> dashboard link: https://syzkaller.appspot.com/bug?extid=131cd4c6d21724b99a26
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1140605c480000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14c92718480000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: xfrm: Reject optional tunnel/BEET mode templates in outbound policies

Looks related.

#syz fix: xfrm: Reject optional tunnel/BEET mode templates in outbound policies

>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
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