linux-kernel - Re: [syzbot] [iommu?] KASAN: slab-use-after-free Read in iommufd_vfio

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Message-ID: <0000000000006e530806093e7487@google.com>
Date:   Fri, 03 Nov 2023 05:15:06 -0700
From:   syzbot <syzbot+d31adfb277377ef8fcba@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [iommu?] KASAN: slab-use-after-free Read in iommufd_vfio_ioas

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+d31adfb277377ef8fcba@...kaller.appspotmail.com

Tested on:

commit:         8f6f76a6 Merge tag 'mm-nonmm-stable-2023-11-02-14-08' ..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=166db0eb680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4c856b92a9ee7d89
dashboard link: https://syzkaller.appspot.com/bug?extid=d31adfb277377ef8fcba
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=138b353d680000

Note: testing is done by a robot and is best-effort only.