From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0AA1BCCF9EE for ; Wed, 29 Oct 2025 20:28:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UTcYzXZPrniWZCkwHLSm2V6Hq8R2XKza/pCFwi3PJs0=; b=kV1MWYfH83pfqU548dihHCLBn6 NjRkvy1uWQx+nyDmHBSd3s6XlO4xJgXCTHemQEkZjGf/qx9S9mqaATpno+RW4u3M5QXxoNf7rs5qf aPyOtwPyHfY+aHwVeEbUXq7xIH31bnAOy30F2mjj9hTW/YKZqGB9LzOxEbDHQ5xfqJPXUKAPdTrCA akSk5jzd4LWllNNtNRqdD8hVVelqd2uKQAkPwpSn58F723wNmqyzXftMICrEcuUy6L9OfarEhYhC+ NRRF44Zy0/ez7nBNU3dy6IVlg2/ebB03/gtEuoVdctb78oNXz+2nweyXc32hjXw09AH8JS49j52vX or5UMKKA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vECmJ-00000002mtF-2dca; Wed, 29 Oct 2025 20:28:19 +0000 Received: from out-185.mta0.migadu.com ([91.218.175.185]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vECmG-00000002mmx-3qWn for linux-arm-kernel@lists.infradead.org; Wed, 29 Oct 2025 20:28:18 +0000 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> 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251029_132817_101550_227BF7CF X-CRM114-Status: UNSURE ( 9.18 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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