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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 188B8C433F5 for ; Fri, 17 Sep 2021 09:26:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F23EA611CA for ; Fri, 17 Sep 2021 09:26:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245723AbhIQJ2H (ORCPT ); Fri, 17 Sep 2021 05:28:07 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:54952 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245754AbhIQJXo (ORCPT ); Fri, 17 Sep 2021 05:23:44 -0400 Received: by mail-il1-f199.google.com with SMTP id b18-20020a92dcd2000000b00234edde2da9so20648463ilr.21 for ; Fri, 17 Sep 2021 02:22:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=+pjv963NVKwgxuXPNBd5iR2KeT18UVqlRyrWIcJtYTk=; b=dFV6w2faIcSEhUbSm/r+3qZPy7wB8ifFi1H+lK9iPWjWlHsqXmhCpQ8N3grUGE1Ujt XEKsnbezFFJBiaCCisI7S48ZLL/cSJYD2VSRTLhwrIpsRT8aeqAgztgTt+x3gxdm8hTt 4Kyj/KmnBFKjmog7a+4IW2Hnjqx8Wv6IuY7O5u6/OrfToqzHQPAP/NKHAImgwwagVpYI CzBEBgN0Ji+lP6OJ2hw8szuUBFh4MHMKoCUoMBG+wg3EuvUsuHr72jwQy7PGg+Kaspgs On4eQThjOfsg1mpAHjdgpjjXmkaYsxf/zGl7b55YTIXpRReWEbYoMBN4iQ6bw+rJVx77 8jbA== X-Gm-Message-State: AOAM530Tpl25faivTex8seVOVvD8GOv/3gm3m4C16Zc0z8mdQUwZ7lLS 0u2ZwGxCAwgyumu5BFo8Mohej0LE4pGmoTBGWpNO0SjMMpxq X-Google-Smtp-Source: ABdhPJwfwr742mMLZxlF5D2Wtjfg2jTaGV5+lNNfcpFM47G+lkIaDvAFLRJ9ZNvzghKwlWVdkQ25HzHXV7MBsZZN244VQMNHDiWb MIME-Version: 1.0 X-Received: by 2002:a05:6638:372a:: with SMTP id k42mr7890370jav.71.1631870542312; Fri, 17 Sep 2021 02:22:22 -0700 (PDT) Date: Fri, 17 Sep 2021 02:22:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fe7dd005cc2d77c0@google.com> Subject: [syzbot] kernel BUG in vmf_insert_pfn_prot From: syzbot To: airlied@linux.ie, christian.koenig@amd.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, sumit.semwal@linaro.org, syzkaller-bugs@googlegroups.com, tzimmermann@suse.de Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 9004fd387338 Add linux-next specific files for 20210917 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17ecf0ad300000 kernel config: https://syzkaller.appspot.com/x/.config?x=45d5ac72f31f29f3 dashboard link: https://syzkaller.appspot.com/bug?extid=2d4f8693f438d2bd4bdb compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2d4f8693f438d2bd4bdb@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at mm/memory.c:2103! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8279 Comm: syz-executor.0 Not tainted 5.15.0-rc1-next-20210917-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vmf_insert_pfn_prot+0x248/0x450 mm/memory.c:2103 Code: 0f 0b e8 6b d0 ca ff 4d 89 f7 bf 20 00 00 00 41 83 e7 28 4c 89 fe e8 b7 d5 ca ff 49 83 ff 20 0f 85 a5 fe ff ff e8 48 d0 ca ff <0f> 0b 49 be ff ff ff ff ff ff 0f 00 e8 37 d0 ca ff 4d 21 ee 4c 89 RSP: 0000:ffffc90005f47bd0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff92000be8f7c RCX: 0000000000000000 RDX: ffff888050adb900 RSI: ffffffff81ab3e18 RDI: 0000000000000003 RBP: ffff88807e3bcc60 R08: 0000000000000020 R09: ffffc90005f47bb7 R10: ffffffff81ab3e09 R11: 1ffffffff1ebb3fc R12: 000000002001d000 R13: 0000000000145dc3 R14: 0000000008140476 R15: 0000000000000020 FS: 0000555555f1e400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005608abbf4250 CR3: 000000006e072000 CR4: 00000000001506f0 Call Trace: drm_gem_shmem_fault+0x1e3/0x290 drivers/gpu/drm/drm_gem_shmem_helper.c:564 __do_fault+0x10d/0x4d0 mm/memory.c:3848 do_cow_fault mm/memory.c:4184 [inline] do_fault mm/memory.c:4285 [inline] handle_pte_fault mm/memory.c:4541 [inline] __handle_mm_fault+0x370e/0x5120 mm/memory.c:4676 handle_mm_fault+0x1c8/0x790 mm/memory.c:4774 do_user_addr_fault+0x48b/0x11c0 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0033:0x7f1096c04d5a Code: 30 48 8b 34 24 48 85 f6 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fe 01 0f 85 a1 01 00 00 48 8b 44 24 10 8b 74 24 18 <89> 30 e9 d2 fc ff ff 48 8b 44 24 10 8b 10 48 8b 04 24 48 85 c0 0f RSP: 002b:00007ffd0b939970 EFLAGS: 00010246 RAX: 000000002001d000 RBX: 00007f109716c000 RCX: 0000000000000000 RDX: 182c4ff2a4394aee RSI: 0000000000000001 RDI: 0000555555f1e2f0 RBP: 00007ffd0b939a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 00000000e900f6d2 R12: 00000000001760c0 R13: 00000000000003e8 R14: 00007f1096d67f80 R15: 0000000000176064 Modules linked in: ---[ end trace 1a78047d43092735 ]--- RIP: 0010:vmf_insert_pfn_prot+0x248/0x450 mm/memory.c:2103 Code: 0f 0b e8 6b d0 ca ff 4d 89 f7 bf 20 00 00 00 41 83 e7 28 4c 89 fe e8 b7 d5 ca ff 49 83 ff 20 0f 85 a5 fe ff ff e8 48 d0 ca ff <0f> 0b 49 be ff ff ff ff ff ff 0f 00 e8 37 d0 ca ff 4d 21 ee 4c 89 RSP: 0000:ffffc90005f47bd0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff92000be8f7c RCX: 0000000000000000 RDX: ffff888050adb900 RSI: ffffffff81ab3e18 RDI: 0000000000000003 RBP: ffff88807e3bcc60 R08: 0000000000000020 R09: ffffc90005f47bb7 R10: ffffffff81ab3e09 R11: 1ffffffff1ebb3fc R12: 000000002001d000 R13: 0000000000145dc3 R14: 0000000008140476 R15: 0000000000000020 FS: 0000555555f1e400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb730a0718 CR3: 000000006e072000 CR4: 00000000001506e0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.