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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 2AD6BC4321D for ; Wed, 15 Aug 2018 16:00:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 912C82154B for ; Wed, 15 Aug 2018 16:00:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 912C82154B 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=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729689AbeHOSws (ORCPT ); Wed, 15 Aug 2018 14:52:48 -0400 Received: from mail-it0-f72.google.com ([209.85.214.72]:51215 "EHLO mail-it0-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729504AbeHOSwr (ORCPT ); Wed, 15 Aug 2018 14:52:47 -0400 Received: by mail-it0-f72.google.com with SMTP id q5-v6so1620680ith.1 for ; Wed, 15 Aug 2018 09:00:05 -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=IEDhB+IBZG/MNVy7maCMfBXfz36jegRFDsxzazbuBQw=; b=ZbMF+eejyWpJE9GYd91VOPJZONPdrLGVW6vMP715WFG5tiOi0gyEdq8SekYMJstEl5 dNPJHX0zdvH1xqM4t8ZoknR1ZAW5MpFZAfdnvytp8Va42RvseSQUEdty+j+drarzm8be 0FeJdbLHfDKbQxt6hj3txXapT6CYxiJwFkt2t32U3PF7X/19Z9id1AwNITbuuTQ3vUbi e6M5quJsuAAujllliKnfq9o/9waHA78IZF+jBblT6uOnOHNVO9pQkXnTOs+QOGpVQb/Q t+xuHW/0FO/mEVv4+Kru4KtFXH3rfRQTk4HeNfqXMMSL/LbisyFLNIMg5SPeUdQx0s0+ XXFw== X-Gm-Message-State: AOUpUlFF/iOd6X4dUozPNezyHgb2b1VLSjRFPrIahs5hsn/vGhp7uEuK S9k67YrdrfyMopXuPtdK05VXCEIepVQn3CzekmbMbpktHXDB X-Google-Smtp-Source: AA+uWPydp2ghNp9wagOcxrrplM0RIyZjrPOiNRJjbFrDz8hW4rL9WjCqoesfIJUllGV48DDpzIGeQ2lU+k4ReTZkPdhXmOSVYR0+ MIME-Version: 1.0 X-Received: by 2002:a6b:b513:: with SMTP id e19-v6mr12401312iof.35.1534348804134; Wed, 15 Aug 2018 09:00:04 -0700 (PDT) Date: Wed, 15 Aug 2018 09:00:04 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006ebad505737b6bf4@google.com> Subject: WARNING in wiphy_register (2) From: syzbot To: davem@davemloft.net, johannes@sipsolutions.net, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: ec0c96714e7d Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17b01274400000 kernel config: https://syzkaller.appspot.com/x/.config?x=152cb8ccd35b1f70 dashboard link: https://syzkaller.appspot.com/bug?extid=2a12f11c306afe871c1f compiler: gcc (GCC) 8.0.1 20180413 (experimental) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=10b2a2f8400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ff3622400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+2a12f11c306afe871c1f@syzkaller.appspotmail.com random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) netlink: 'syz-executor064': attribute type 9 has an invalid length. WARNING: CPU: 0 PID: 4439 at net/wireless/core.c:550 wiphy_verify_combinations net/wireless/core.c:550 [inline] WARNING: CPU: 0 PID: 4439 at net/wireless/core.c:550 wiphy_register+0x12c1/0x2510 net/wireless/core.c:741 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 4439 Comm: syz-executor064 Not tainted 4.18.0-rc8+ #184 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+0x1c9/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:wiphy_verify_combinations net/wireless/core.c:550 [inline] RIP: 0010:wiphy_register+0x12c1/0x2510 net/wireless/core.c:741 Code: 74 08 3c 01 0f 8e c5 10 00 00 66 45 89 67 30 e9 18 f9 ff ff e8 40 00 4c fb 0f 0b bb ea ff ff ff e9 f5 f3 ff ff e8 2f 00 4c fb <0f> 0b bb ea ff ff ff e9 e4 f3 ff ff e8 1e 00 4c fb 0f 0b bb ea ff RSP: 0018:ffff8801ac51ee60 EFLAGS: 00010293 RAX: ffff8801af3fc700 RBX: 0000000000000000 RCX: ffffffff86301238 RDX: 0000000000000000 RSI: ffffffff86301821 RDI: 0000000000000005 RBP: ffff8801ac51f000 R08: ffff8801af3fc700 R09: ffffed00358d6114 R10: ffffed00358d6114 R11: ffff8801ac6b08a5 R12: ffff8801ac6b327c R13: ffffffff87838ae0 R14: dffffc0000000000 R15: ffff8801ac6b08a0 ieee80211_register_hw+0x13d5/0x35e0 net/mac80211/main.c:1050 mac80211_hwsim_new_radio+0x1db8/0x33b0 drivers/net/wireless/mac80211_hwsim.c:2772 hwsim_new_radio_nl+0x7c0/0xa80 drivers/net/wireless/mac80211_hwsim.c:3247 genl_family_rcv_msg+0x8a3/0x1140 net/netlink/genetlink.c:601 genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2455 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a0/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfd0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:642 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:652 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2126 __sys_sendmsg+0x11d/0x290 net/socket.c:2164 __do_sys_sendmsg net/socket.c:2173 [inline] __se_sys_sendmsg net/socket.c:2171 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2171 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4402c9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffcf9426d68 EFLAGS: 00000213 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402c9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401b50 R13: 0000000000401be0 R14: 0000000000000000 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) 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#bug-status-tracking for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches