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Message-ID: <CANp29Y7+q_Jo65YHbReU9AYJfU=e6sZqNxxTOhgzgDTC04OY+A@mail.gmail.com>
Date: Mon, 12 Feb 2024 11:32:29 +0100
From: Aleksandr Nogikh <nogikh@...gle.com>
To: syzbot <syzbot+51baee846ddab52d5230@...kaller.appspotmail.com>
Cc: akpm@...ux-foundation.org, davem@...emloft.net, dvyukov@...gle.com,
edumazet@...gle.com, johan.hedberg@...il.com, kuba@...nel.org,
linux-bluetooth@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, luiz.dentz@...il.com, luiz.von.dentz@...el.com,
marcel@...tmann.org, netdev@...r.kernel.org, pabeni@...hat.com,
syzkaller-bugs@...glegroups.com, torvalds@...ux-foundation.org,
william.xuanziyang@...wei.com, willy@...radead.org, wzhmmmmm@...il.com
Subject: Re: [syzbot] [bluetooth?] KASAN: null-ptr-deref Read in ida_free (4)
Looks reasonable, judging by the commit title.
#syz fix: ida: Fix crash in ida_free when the bitmap is empty
On Sun, Feb 11, 2024 at 10:55 AM syzbot
<syzbot+51baee846ddab52d5230@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a
> Author: Matthew Wilcox (Oracle) <willy@...radead.org>
> Date: Thu Dec 21 16:53:57 2023 +0000
>
> ida: Fix crash in ida_free when the bitmap is empty
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12fc6ba2180000
> start commit: b46ae77f6787 Merge tag 'xfs-6.7-fixes-3' of git://git.kern..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=6ae1a4ee971a7305
> dashboard link: https://syzkaller.appspot.com/bug?extid=51baee846ddab52d5230
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=127837cce80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12779dc8e80000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: ida: Fix crash in ida_free when the bitmap is empty
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
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