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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 70DAAC10DCE for ; Sun, 15 Mar 2020 23:20:09 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 50B3F2051A for ; Sun, 15 Mar 2020 23:20:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 50B3F2051A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C1AAC6E2CC; Sun, 15 Mar 2020 23:19:14 +0000 (UTC) Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by gabe.freedesktop.org (Postfix) with ESMTPS id C4F646E11A for ; Sat, 14 Mar 2020 09:13:02 +0000 (UTC) Received: by mail-io1-f72.google.com with SMTP id w16so8247308iot.2 for ; Sat, 14 Mar 2020 02:13:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=fehXyPD76GCyl5R7ov6y7Hf3HMx60GvaSqGjNkGo7AI=; b=L+yzFaORQ85tJkOiBohw42oDc9fKorxS7+tMBZICmIJ1p2MrA4kVlFb8Xc/jceyxiV 9AN3JQZw3hY8nbDavSz141hI4/1wGsY7Q+PYDbcsvhU8UDZ3cCl/JW0u60rg7yV602Ho 0vUs98uetEzZFCb7uEWEj0P6zRxbogZJXxvWcypXfxKZgovYE7vC2cZ3emv8GNkks+5q LLkW/7VGNtfmInD6RR9pQ9Il4bbG71yPgXUAZr2w+Cm3MeKcFUvMAVYdNwNMhmYk57Eq C6NwkyXkawJeBGcPVPykTd+UCUQo2JPZxmwDBQ/zBv7AxSRsywHrVtC/kcLTnNfOqg2t DyyA== X-Gm-Message-State: ANhLgQ0FucOUMs326qtO/FRqhbO2giS/3SWYX9mhgoiqLTaQDVur6LyR NO0tHyn9898N2TEyM6OmvJ744kmf363jvTgHiqmLbOvGYWks X-Google-Smtp-Source: ADFU+vv2891WR4s0bwl6a/z+8zKmjAsGygTo5Ydw9RASenClGGMHV/Cth46q/9iVaEz8Y3XWzsvuErzYfw5bihwf1QLKGLYJq7XJ MIME-Version: 1.0 X-Received: by 2002:a05:6638:a99:: with SMTP id 25mr17442914jas.37.1584177182115; Sat, 14 Mar 2020 02:13:02 -0700 (PDT) Date: Sat, 14 Mar 2020 02:13:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000338c3a05a0ccfedd@google.com> Subject: Re: WARNING in idr_destroy From: syzbot To: airlied@linux.ie, anenbupt@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, syzkaller-bugs@googlegroups.com X-Mailman-Approved-At: Sun, 15 Mar 2020 23:19:05 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hello, syzbot has tested the proposed patch but the reproducer still triggered crash: WARNING in idr_destroy RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000203 R14: 00000000004c3e56 R15: 0000000000000008 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9124 at lib/radix-tree.c:682 radix_tree_free_nodes lib/radix-tree.c:682 [inline] WARNING: CPU: 0 PID: 9124 at lib/radix-tree.c:682 idr_destroy+0x1ae/0x260 lib/radix-tree.c:1572 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9124 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fb/0x318 lib/dump_stack.c:118 panic+0x264/0x7a9 kernel/panic.c:221 __warn+0x209/0x210 kernel/panic.c:582 report_bug+0x1b6/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0xcf/0x1c0 arch/x86/kernel/traps.c:267 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:radix_tree_free_nodes lib/radix-tree.c:682 [inline] RIP: 0010:idr_destroy+0x1ae/0x260 lib/radix-tree.c:1572 Code: 43 5f f9 48 89 df 48 c7 c6 10 83 17 88 e8 ca 5c 4c f9 4c 3b 65 b8 74 57 e8 7f 43 5f f9 4d 89 fc e9 67 ff ff ff e8 72 43 5f f9 <0f> 0b eb d5 89 f9 80 e1 07 38 c1 7c 84 e8 e0 75 9c f9 e9 7a ff ff RSP: 0018:ffffc900021b7ba0 EFLAGS: 00010293 RAX: ffffffff8817dc0e RBX: ffff8880aa010598 RCX: ffff888096740440 RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff8880aa010588 RBP: ffffc900021b7be8 R08: ffffffff8817db80 R09: ffffed1011809f91 R10: ffffed1011809f91 R11: 0000000000000000 R12: ffff8880aa010580 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 drm_mode_create_lease_ioctl+0x13c9/0x18c0 drivers/gpu/drm/drm_lease.c:587 drm_ioctl_kernel+0x2cf/0x410 drivers/gpu/drm/drm_ioctl.c:786 drm_ioctl+0x52f/0x890 drivers/gpu/drm/drm_ioctl.c:886 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl fs/ioctl.c:763 [inline] __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl+0x113/0x190 fs/ioctl.c:770 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:770 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c479 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f680fc16c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f680fc176d4 RCX: 000000000045c479 RDX: 0000000020000040 RSI: ffffffffffffffc6 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000203 R14: 00000000004c3e56 R15: 0000000000000008 Kernel Offset: disabled Rebooting in 86400 seconds.. Tested on: commit: 7f398516 drm/lease: fix stack variable uninitialized git tree: https://github.com/hqj/hqjagain_test.git drm console output: https://syzkaller.appspot.com/x/log.txt?x=1227a1f9e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=cec95cb58b6f6294 dashboard link: https://syzkaller.appspot.com/bug?extid=05835159fe322770fe3d compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel