linux-kernel - Re: [syzbot] [bcachefs] KASAN: use-after-free Read in crypto_poly1305

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <687961bf.a00a0220.3af5df.0023.GAE@google.com>
Date: Thu, 17 Jul 2025 13:49:03 -0700
From: syzbot <syzbot+d587b24799bd8c2d32f4@...kaller.appspotmail.com>
To: bfoster@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, 
	davem@...emloft.net, herbert@...dor.apana.org.au, hpa@...or.com, 
	kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org, mingo@...hat.com, 
	mmpgouride@...il.com, syzkaller-bugs@...glegroups.com, tglx@...utronix.de, 
	x86@...nel.org
Subject: Re: [syzbot] [bcachefs] KASAN: use-after-free Read in crypto_poly1305_update

syzbot suspects this issue was fixed by commit:

commit d89a34b14df5c205de698c23c3950b2b947cdb97
Author: Alan Huang <mmpgouride@...il.com>
Date:   Sat Jun 14 09:18:07 2025 +0000

    bcachefs: Move bset size check before csum check

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1722a58c580000
start commit:   2408a807bfc3 Merge tag 'vfs-6.14-rc4.fixes' of git://git.k..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=6cc40dfe827ffb85
dashboard link: https://syzkaller.appspot.com/bug?extid=d587b24799bd8c2d32f4
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12c4f2e4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e4c498580000

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

#syz fix: bcachefs: Move bset size check before csum check

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