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From: syzbot <syzbot+ebfd0e44b5c11034e1eb@syzkaller.appspotmail.com>
To: Liam.Howlett@oracle.com, akpm@linux-foundation.org,
	jannh@google.com,  liam.howlett@oracle.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	 lorenzo.stoakes@oracle.com, pfalcato@suse.de,
	syzkaller-bugs@googlegroups.com,  vbabka@suse.cz
Subject: Re: [syzbot] [mm?] KASAN: slab-use-after-free Read in mas_next_slot (2)
Date: Wed, 16 Jul 2025 12:11:03 -0700	[thread overview]
Message-ID: <6877f947.a70a0220.693ce.002f.GAE@google.com> (raw)
In-Reply-To: <6877e797.a00a0220.3af5df.0012.GAE@google.com>

syzbot has bisected this issue to:

commit ef69a41567549aa8ba7deb350ab1f3f55011591d
Author: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Date:   Fri Jul 11 11:38:23 2025 +0000

    mm/mremap: permit mremap() move of multiple VMAs

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=170f458c580000
start commit:   0be23810e32e Add linux-next specific files for 20250714
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=148f458c580000
console output: https://syzkaller.appspot.com/x/log.txt?x=108f458c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=adc3ea2bfe31343b
dashboard link: https://syzkaller.appspot.com/bug?extid=ebfd0e44b5c11034e1eb
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11d0658c580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15dd858c580000

Reported-by: syzbot+ebfd0e44b5c11034e1eb@syzkaller.appspotmail.com
Fixes: ef69a4156754 ("mm/mremap: permit mremap() move of multiple VMAs")

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


  parent reply	other threads:[~2025-07-16 19:11 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-16 17:55 [syzbot] [mm?] KASAN: slab-use-after-free Read in mas_next_slot (2) syzbot
2025-07-16 18:27 ` Lorenzo Stoakes
2025-07-16 18:32   ` Lorenzo Stoakes
2025-07-16 19:04 ` Lorenzo Stoakes
2025-07-16 19:38   ` Lorenzo Stoakes
2025-07-16 19:11 ` syzbot [this message]
2025-07-17  1:46 ` Hillf Danton
2025-07-17  3:55   ` syzbot
2025-07-17  4:18     ` Lorenzo Stoakes
2025-07-17 16:06       ` Lorenzo Stoakes
2025-07-17 23:42         ` Hillf Danton
2025-07-18 11:08           ` Lorenzo Stoakes
2025-07-18 12:56             ` Hillf Danton

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