linux-kernel - Re: [syzbot] [mm?] KASAN: out-of-bounds Read in copy_from_kernel

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Message-ID: <66fc84ce.050a0220.f28ec.04db.GAE@google.com>
Date: Tue, 01 Oct 2024 16:25:02 -0700
From: syzbot <syzbot+61123a5daeb9f7454599@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, andreyknvl@...il.com, dvyukov@...gle.com, 
	glider@...gle.com, kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, ryabinin.a.a@...il.com, snovitoll@...il.com, 
	syzkaller-bugs@...glegroups.com, vincenzo.frascino@....com
Subject: Re: [syzbot] [mm?] KASAN: out-of-bounds Read in copy_from_kernel_nofault

syzbot has bisected this issue to:

commit 88ad9dc30bbf1b08bd1dddedf9ff39019f469b8f
Author: Sabyrzhan Tasbolatov <snovitoll@...il.com>
Date:   Fri Sep 27 15:14:38 2024 +0000

    mm, kasan: instrument copy_from/to_kernel_nofault

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15848307980000
start commit:   cea5425829f7 Add linux-next specific files for 20240930
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=17848307980000
console output: https://syzkaller.appspot.com/x/log.txt?x=13848307980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=41a28720ed564c6a
dashboard link: https://syzkaller.appspot.com/bug?extid=61123a5daeb9f7454599
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14dbf127980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12dbf127980000

Reported-by: syzbot+61123a5daeb9f7454599@...kaller.appspotmail.com
Fixes: 88ad9dc30bbf ("mm, kasan: instrument copy_from/to_kernel_nofault")

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