linux-kernel - Re: [syzbot] [jfs?] KASAN: user-memory-access Write in __destroy

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: <695e743e.050a0220.1c677c.036a.GAE@google.com>
Date: Wed, 07 Jan 2026 06:57:02 -0800
From: syzbot <syzbot+dcc068159182a4c31ca3@...kaller.appspotmail.com>
To: brauner@...nel.org, dmantipov@...dex.ru, jack@...e.cz, 
	jfs-discussion@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org, mjguzik@...il.com, 
	shaggy@...nel.org, syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] [jfs?] KASAN: user-memory-access Write in __destroy_inode

syzbot suspects this issue was fixed by commit:

commit dca3aa666fbd71118905d88bb1c353881002b647
Author: Mateusz Guzik <mjguzik@...il.com>
Date:   Sun Nov 9 12:19:31 2025 +0000

    fs: move inode fields used during fast path lookup closer together

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1480019a580000
start commit:   6146a0f1dfae Linux 6.18-rc4
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=e46b8a1c645465a9
dashboard link: https://syzkaller.appspot.com/bug?extid=dcc068159182a4c31ca3
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15ef4532580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=179c1e14580000

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

#syz fix: fs: move inode fields used during fast path lookup closer together

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