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=-0.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 4ECA8C10DCE for ; Thu, 12 Mar 2020 16:31:50 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 CF4B92067C for ; Thu, 12 Mar 2020 16:31:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="UMX7ySCt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF4B92067C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 6932F1733; Thu, 12 Mar 2020 17:30:56 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6932F1733 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1584030706; bh=vElPR3QX3tHiie7PggHyPf8Scfc9X4yZFsAN+Ittzuo=; h=Date:Subject:From:To:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=UMX7ySCtzigw97LUd8FwZltGozwsQGQbZppkik51CMjuntSzs1YclIcOMimPiQWU0 kkSZeJCGAHrQCAgX9VE58J6RSMjqWeMXVIiSHUCgSlHot6hZp4F2Su+xsap9nWA7+D jN0tyLkgV65FBO2mjmg0XVczUlDaFvABf0Dmjw5M= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id AEE12F8021C; Thu, 12 Mar 2020 17:30:05 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5D9FAF8020C; Thu, 12 Mar 2020 16:47:20 +0100 (CET) Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 5B813F8013E for ; Thu, 12 Mar 2020 16:47:15 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 5B813F8013E Received: by mail-io1-f72.google.com with SMTP id p4so4189113ioo.4 for ; Thu, 12 Mar 2020 08:47:15 -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:message-id:subject:from:to; bh=O73odJhRE0RHld216mUpontgZMPThRLNn/9xOQ9zEz4=; b=rUbDnZF55+up8Awez3S9l4nxS2zX6BVLCE2Ndb7Edpz+lolX89y/yqhjZghKsVemsP 4UjPcC9tHb7MStVCO7SFSQh9zdEnw8hHKF/bNtwUlAIo59HAhDJeTxButGki/OE2fZI+ R//7kK4+jQriMjqvjCqdTn7R1bcz773hww0tFocjcBYdQkws/JuZZUbo7S2MsdhywdSW AflSNWYwITSMlkpo+uY4VEazwYT/mNhyOs2b1ccTLKlgROvP2nVETywOzcsqUrdGQhEI kc50eLzbuzcrNydl4Gle4q3W4PBiSU54+Dk8FU8ovxgHzvjQWaq3SEql/1PNFEOYRTz7 cB1g== X-Gm-Message-State: ANhLgQ090XMm/1SKV3EII9CVQ5ge0dRx2bj6rfeSPSQE16BH0vZ6lVnq 9vMZxZYPXgh1LNwcXGEfDsp6R43aMN7SDh315Q261wc7EnKO X-Google-Smtp-Source: ADFU+vvaavmPhh9rz8kG1SSIP1LAz3qXenQRbRDuSH3nHZItb1tKcdfIX9vmI8nzNvqHJQLjeHH+GFo9B7OE3ObSiz50VG9KRMu2 MIME-Version: 1.0 X-Received: by 2002:a92:ddcb:: with SMTP id d11mr8654833ilr.211.1584028034040; Thu, 12 Mar 2020 08:47:14 -0700 (PDT) Date: Thu, 12 Mar 2020 08:47:14 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000488d2805a0aa449c@google.com> Subject: linux-next test error: WARNING in snd_pcm_plug_alloc From: syzbot To: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, syzkaller-bugs@googlegroups.com, tiwai@suse.com Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Thu, 12 Mar 2020 17:29:57 +0100 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hello, syzbot found the following crash on: HEAD commit: 407b0a62 Add linux-next specific files for 20200312 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14dd6545e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=d644875269fc730b dashboard link: https://syzkaller.appspot.com/bug?extid=2a59ee7a9831b264f45e compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+2a59ee7a9831b264f45e@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8559 at sound/core/oss/pcm_plugin.c:126 snd_pcm_plug_alloc+0x29a/0x330 sound/core/oss/pcm_plugin.c:126 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8559 Comm: syz-fuzzer Not tainted 5.6.0-rc5-next-20200312-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:snd_pcm_plug_alloc+0x29a/0x330 sound/core/oss/pcm_plugin.c:126 Code: ff ff 45 31 e4 e8 d6 4d 7f fb 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 e8 c5 4d 7f fb 0f 0b 41 bc fa ff ff ff eb e0 e8 b6 4d 7f fb <0f> 0b 41 bc fa ff ff ff eb d1 e8 a7 4d 7f fb 0f 0b 41 bc fa ff ff RSP: 0018:ffffc90002317b88 EFLAGS: 00010293 RAX: ffff888093a7c200 RBX: ffff8880a4086000 RCX: ffffffff85f37886 RDX: 0000000000000000 RSI: ffffffff85f37a0a RDI: 0000000000000007 RBP: 0000000000000000 R08: ffff888093a7c200 R09: ffffed10132a791f R10: ffff88809953c8f3 R11: ffffed10132a791e R12: ffff8880a4086058 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88809953c800 snd_pcm_oss_change_params_locked+0x1c05/0x34b0 sound/core/oss/pcm_oss.c:1021 snd_pcm_oss_change_params+0x76/0xd0 sound/core/oss/pcm_oss.c:1084 snd_pcm_oss_make_ready+0xb7/0x170 sound/core/oss/pcm_oss.c:1143 snd_pcm_oss_sync.isra.0+0x1be/0x7d0 sound/core/oss/pcm_oss.c:1708 snd_pcm_oss_release+0x210/0x280 sound/core/oss/pcm_oss.c:2546 __fput+0x2da/0x850 fs/file_table.c:280 task_work_run+0xf4/0x1b0 kernel/task_work.c:123 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x2fa/0x360 arch/x86/entry/common.c:165 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x6b1/0x7d0 arch/x86/entry/common.c:305 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4afb40 Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 RSP: 002b:000000c000213588 EFLAGS: 00000212 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000000c00002c000 RCX: 00000000004afb40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000c0002135c8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000006 R13: 0000000000000005 R14: 0000000000000200 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.