From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 25D2E22AE65 for ; Fri, 24 Oct 2025 23:27:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761348424; cv=none; b=bzrps4f8CFr4/8kbYUxK+mqcvPNT1FSrpxqUwT9L94xRH3u8woavsjBKEY1hgKUdCUrx9DO9DthP22vmGkJsddYm/Bwn6m4qquqcv2rwYqbrHjOcriOZuXt2e8RPazhqwG/M5oK/E8gUEVVJcIHQR5/SyDgMjFCBiP2jEYL3x4M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761348424; c=relaxed/simple; bh=3IzmtxV+k1CuCWhjKwm3ov3MDEiQQ+Y0OcMKRGuLLtI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=b8d3/PgH9e/IkvSfCY7mbhpM6EWP5xBepG64YIoCFw7sBSWmOi0NQ8Lr5cjnmTRNRCRk9m1imqiqXd/8M/HOJ42w5sicgNkUFeEEOtwXxclaFWp4ji/gFtDfvoV1qlFH/1AXnkCCk+LA66Kuh1AC8O4aRfU2H3UF7tynd4px1wY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f199.google.com with SMTP id e9e14a558f8ab-430ce62d138so34707115ab.3 for ; Fri, 24 Oct 2025 16:27:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761348422; x=1761953222; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GblzFMUZu0VlIWrlaRVoWJh9w1MmpHUAGd1oa8PG1ic=; b=vWEWiN1bI3C4Jce3DUtqlnkSLuqTD8X47u/LOevCXMio1wgY9dooU9kyuAieoiTk41 CjbDBSpeNQecXk2OuPYpv+hRF6td34rpCIKDgtzd7NQZkibZPC3jv5iQ6wj02K2fgjRl wRII0oT6wRevRFGgV1L6qzjWfiDxdZNI2zP5NtiiCz2ErN5GSPS0npg35cXt5hgwFKfI NGCB9A2Tt8bm4HH7XJAEngtxoSBqZLaFQHNinK+/rXcZeBLwlo1bqwXvgeEvdU6VccsB LTJ7W/171MhXX6aPGQcv0NM89hVc+GmkQ+9TdGYwk7jPtBR/GnDxl4kf0yRXcKTQ0f/Z CSuQ== X-Forwarded-Encrypted: i=1; AJvYcCWKHCaJHH8AHYWeHTNaOwti1hgyZJHcF/6wuG1Cddl+Ik24wjWKtEBHePjCYkbL/Hrt2g4=@vger.kernel.org X-Gm-Message-State: AOJu0Yw2JIVRzubkTUdmjr0RNIYk1IFUhF4N6HiIHL/1UOS8dIbl65pg R3An3q/kyJCjwfgzlc1ODSTvWqBMSyIMJ8rrMl+mt3RLA1DBf8rE+7/jdZz2MbD065mtH8AQzA3 qkKi7cJUv+4kxezbzyO2Wpxd3gMDG+apYUoXiLIY8yTUwrdAZTDRlVfpaBQc= X-Google-Smtp-Source: AGHT+IFFzFiCwb0a2CE6b5Vw4N/nWGwy/jlX6MQXaWDaY5FSRGJARWwTzmq3c6eQv4u+knwAAw3h/O+QaK9dBNlWXB7FJm6Or3uG Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a27:b0:430:cfe4:6e61 with SMTP id e9e14a558f8ab-430cfe46e9amr398027905ab.14.1761348422373; Fri, 24 Oct 2025 16:27:02 -0700 (PDT) Date: Fri, 24 Oct 2025 16:27:02 -0700 In-Reply-To: <20251024232459.8716-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68fc0b46.a00a0220.9662e.000f.GAE@google.com> Subject: Re: [syzbot] [kvm?] KASAN: slab-use-after-free Write in kvm_gmem_release From: syzbot To: hdanton@sina.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, seanjc@google.com, syzkaller-bugs@googlegroups.com, tabba@google.com, xiaoyao.li@intel.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot tried to test the proposed patch but the build/boot failed: failed to apply patch: checking file virt/kvm/guest_memfd.c Hunk #1 FAILED at 708. Hunk #2 FAILED at 732. 2 out of 2 hunks FAILED Tested on: commit: d2818517 Merge tag 'block-6.18-20251023' of git://git... git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=67b63a24f3c26fca dashboard link: https://syzkaller.appspot.com/bug?extid=2479e53d0db9b32ae2aa compiler: patch: https://syzkaller.appspot.com/x/patch.diff?x=14426e7c580000