linux-kernel - Re: [syzbot] [mm?] kernel BUG in __page_table_check

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Message-ID: <6759b6c7.050a0220.17f54a.003f.GAE@google.com>
Date: Wed, 11 Dec 2024 07:59:03 -0800
From: syzbot <syzbot+ccc0e1cfdb72b664f0d8@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, broonie@...nel.org, hdanton@...a.com, 
	liam.howlett@...cle.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	linux-usb@...r.kernel.org, lorenzo.stoakes@...cle.com, 
	pasha.tatashin@...een.com, stern@...land.harvard.edu, 
	syzkaller-bugs@...glegroups.com, vbabka@...e.cz
Subject: Re: [syzbot] [mm?] kernel BUG in __page_table_check_zero (2)

syzbot suspects this issue was fixed by commit:

commit 5de195060b2e251a835f622759550e6202167641
Author: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Date:   Tue Oct 29 18:11:48 2024 +0000

    mm: resolve faulty mmap_region() error path behaviour

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1507b8f8580000
start commit:   850925a8133c Merge tag '9p-for-6.12-rc5' of https://github..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=309bb816d40abc28
dashboard link: https://syzkaller.appspot.com/bug?extid=ccc0e1cfdb72b664f0d8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=158ab65f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=120e6a87980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: mm: resolve faulty mmap_region() error path behaviour

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