From: Oliver Upton <oliver.upton@linux.dev>
To: syzbot <syzbot+c41f3ddb8299a30a98b5@syzkaller.appspotmail.com>
Cc: catalin.marinas@arm.com, joey.gouly@arm.com,
kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, maz@kernel.org,
suzuki.poulose@arm.com, syzkaller-bugs@googlegroups.com,
will@kernel.org, yuzenghui@huawei.com
Subject: Re: [syzbot] [kvmarm?] kernel BUG in kvm_s2_put_page
Date: Wed, 29 Oct 2025 13:27:33 -0700 [thread overview]
Message-ID: <aQJ4tQJPiGF6M9Wb@linux.dev> (raw)
In-Reply-To: <6902734b.050a0220.3344a1.0430.GAE@google.com>
On Wed, Oct 29, 2025 at 01:04:27PM -0700, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 10fd0285305d Merge branch kvm-arm64/selftests-6.18 into kv..
> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next
> console output: https://syzkaller.appspot.com/x/log.txt?x=173e4fe2580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=a4522b3a704e0394
> dashboard link: https://syzkaller.appspot.com/bug?extid=c41f3ddb8299a30a98b5
> compiler: Debian clang version 20.1.8 (++20250708123704+0de59a293f7a-1~exp1~20250708003721.134), Debian LLD 20.1.8
> userspace arch: arm64
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13559c92580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12963fe2580000
>
> Downloadable assets:
> disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-10fd0285.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/65e2ebd050e3/vmlinux-10fd0285.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/9d47fc3df12e/Image-10fd0285.gz.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+c41f3ddb8299a30a98b5@syzkaller.appspotmail.com
#syz fix: Revert "KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables"
Just fast-forwarded kvmarm/next to 6.18-rc3 which has the fix.
Thanks,
Oliver
prev parent reply other threads:[~2025-10-29 20:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-19 14:20 [syzbot] [kvmarm?] kernel BUG in kvm_s2_put_page syzbot
2025-09-19 14:26 ` Marc Zyngier
2025-10-29 20:04 ` syzbot
2025-10-29 20:27 ` Oliver Upton [this message]
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