linux-kernel - Re: [syzbot] [kvmarm?] WARNING in kvm_handle_mmio

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Message-ID: <ZzaKsQ7-mqK78BdT@linux.dev>
Date: Thu, 14 Nov 2024 15:41:37 -0800
From: Oliver Upton <oliver.upton@...ux.dev>
To: syzbot <syzbot+4727d10d6a805738b0f2@...kaller.appspotmail.com>
Cc: catalin.marinas@....com, joey.gouly@....com, kvmarm@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	maz@...nel.org, suzuki.poulose@....com,
	syzkaller-bugs@...glegroups.com, will@...nel.org,
	yuzenghui@...wei.com
Subject: Re: [syzbot] [kvmarm?] WARNING in kvm_handle_mmio_return

On Thu, Nov 14, 2024 at 09:35:28AM -0800, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    2d5404caa8c7 Linux 6.12-rc7
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1393335f980000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=a0d77fb8077b4744
> dashboard link: https://syzkaller.appspot.com/bug?extid=4727d10d6a805738b0f2
> compiler:       aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: arm64
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1793335f980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=144ff4e8580000
> 
> Downloadable assets:
> disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/384ffdcca292/non_bootable_disk-2d5404ca.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/9fafeb95420d/vmlinux-2d5404ca.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/498f7a357ea2/Image-2d5404ca.gz.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+4727d10d6a805738b0f2@...kaller.appspotmail.com

#syz fix: KVM: arm64: Don't retire aborted MMIO instruction

I sent out the pull request for 6.13 yesterday, which includes this fix [*]

[*]: https://lore.kernel.org/kvmarm/ZzWo7_GSUNXe7Ip_@linux.dev/

-- 
Thanks,
Oliver