linux-kernel - Re: [syzbot] [mm?] BUG: unable to handle kernel paging request in vma_merge_existing

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Message-ID: <67e0a7ca.050a0220.21942d.000a.GAE@google.com>
Date: Sun, 23 Mar 2025 17:31:06 -0700
From: syzbot <syzbot+20ed41006cf9d842c2b5@...kaller.appspotmail.com>
To: Liam.Howlett@...cle.com, akpm@...ux-foundation.org, 
	brad.spengler@...nsrcsec.com, jannh@...gle.com, liam.howlett@...cle.com, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, lorenzo.stoakes@...cle.com, 
	pfalcato@...e.de, syzkaller-bugs@...glegroups.com, vbabka@...e.cz
Subject: Re: [syzbot] [mm?] BUG: unable to handle kernel paging request in vma_merge_existing_range

syzbot has bisected this issue to:

commit 47b16d0462a460000b8f05dfb1292377ac48f3ca
Author: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Date:   Sat Feb 22 16:19:52 2025 +0000

    mm: abort vma_modify() on merge out of memory failure

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1415fe98580000
start commit:   586de92313fc Merge tag 'i2c-for-6.14-rc8' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1615fe98580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1215fe98580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2e330e9768b5b8ff
dashboard link: https://syzkaller.appspot.com/bug?extid=20ed41006cf9d842c2b5
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1196f3b0580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17d3dc4c580000

Reported-by: syzbot+20ed41006cf9d842c2b5@...kaller.appspotmail.com
Fixes: 47b16d0462a4 ("mm: abort vma_modify() on merge out of memory failure")

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