linux-kernel - Re: [syzbot] [mm?] general protection fault in mremap

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Message-ID: <89747f09-4edc-4225-9556-38fc683df1b3@lucifer.local>
Date: Mon, 7 Apr 2025 11:12:45 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: syzbot <syzbot+5250c4727db03e3436cc@...kaller.appspotmail.com>
Cc: eadavis@...com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] general protection fault in mremap

On Sat, Apr 05, 2025 at 08:24:03PM -0700, syzbot wrote:
> Hello,
>
> syzbot tried to test the proposed patch but the build/boot failed:
>
> patch is already applied

Not at the commit you reported on syzbot...!

Thanks for trying Edward, but I guess maybe would have been better to just
point it at the fix commit, though having said that, I tried this last time
and the bot couldn't find a working setup after I think 2 attempts, so I
checked _manually_ and confirmed fixed, see [0].

[0]: https://lore.kernel.org/all/bee2d5f5-db93-42f1-829e-3fd250649ca8@lucifer.local/

So no need to further test. If we get a report post-the-fix after all this
even with my manual checking then we can deal with it. But we won't,
because this is resolved.

Thanks!

>
>
> Tested on:
>
> commit:         f4d2ef48 Merge tag 'kbuild-v6.15' of git://git.kernel...
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=adffebefc9feb9d6
> dashboard link: https://syzkaller.appspot.com/bug?extid=5250c4727db03e3436cc
> compiler:
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=1529dd98580000
>