From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-177.mta0.migadu.com (out-177.mta0.migadu.com [91.218.175.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C5D762BDC05 for ; Wed, 29 Oct 2025 20:27:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761769667; cv=none; b=L1DPiA2cdRRziEMgKjG6+LJKDX5fqDoNJbnLvEFcGFLQ00mKAaf0XFggZbWT2WSCfYqLkdDTEd8r1eBGR2HSTxxed1SlYutZif/OMSx4kz96vbigXQ2SrjLJMCuFWEsAnyeFZ/to0BmPl0CNzRF4vsike7fOn3l/tu18CE7LngA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761769667; c=relaxed/simple; bh=V3XWUmSqag986veKI80eSIb6m7nPk9CLKVIRbAGcJuQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cGlLc3ZJ5ZzgbS67V1I462y9F2WiKwjpXjeVfCC8R81Pv6vE+ELqOtt1rzA3UxVCQV61xKhkAbsOkLFjstI29hn/j1Ce0mCpt8SgbkRb60BRc95KZP66BoySPaiZBGFePC+6HJcG5ITwI/RBJVjKaldYmcQQn8Fh/OggQB5Lmy0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=SvOSZpMZ; arc=none smtp.client-ip=91.218.175.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="SvOSZpMZ" Date: Wed, 29 Oct 2025 13:27:33 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1761769663; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=UTcYzXZPrniWZCkwHLSm2V6Hq8R2XKza/pCFwi3PJs0=; b=SvOSZpMZW3/p9h7JBDkzya4FoDoQEO9J+Px2YZf5sVJIhqCyP98bAFnuLqMr0hrcj4PUw1 qkoyJaEFkwISobw8SIX80cnkrsphzxEfEb6YMSZKL0aTCp/jZZchjpNzYL46QSL/9dyIhn wOuyeVhVz2OK3K1f5wkDbsFQ9D0sxx8= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: syzbot 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 Message-ID: References: <68cd66b0.050a0220.139b6.000f.GAE@google.com> <6902734b.050a0220.3344a1.0430.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6902734b.050a0220.3344a1.0430.GAE@google.com> X-Migadu-Flow: FLOW_OUT 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