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=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 3114AC28CBC for ; Sun, 3 May 2020 06:36:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0C0B20757 for ; Sun, 3 May 2020 06:36:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726965AbgECGgP (ORCPT ); Sun, 3 May 2020 02:36:15 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:34317 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726909AbgECGgP (ORCPT ); Sun, 3 May 2020 02:36:15 -0400 Received: by mail-io1-f71.google.com with SMTP id v12so9754916iol.1 for ; Sat, 02 May 2020 23:36:12 -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=67a07j0usMs49GGNNlvvOPtJ8adW6qy1T1+hcEAdDTo=; b=WfyVecXZJDJUA12JYZz5HPOZeKt1ZL0lz2nhX2WRjItgi1c2KKx6IPu47+79G9wy/x E1afw4okqmOTC+KqUmOKlC56IeQsQAxcOme3D3icXGQl3Kzn5juqp+hJ3t+HfG8tE8l2 ysX+UzEwKWyMQIRtboCAQTVQ6nHNH13l71te/3BqUms8EZ29cbHwUnbmiiTKVy5y7CW/ he4mHZodN0TDDV5HC/9MIzTuTQ+Yp9grldT7pm+rLHHKjUCZ0GzD9eEh0ind91SAihAS QW/MkFqF9hnMT8SDpmSqtzQuQw8VpX5c3cM3n+aceHWf8izXK60Poex1edJQ3ynyzuhl BtKg== X-Gm-Message-State: AGi0PuZrHnoCy/YODNWOmb3iarZ0KO8cC/0uMRaQLkfN7scsTypRTwk+ pQXsObyedjOB3ngI0iQEgBjvcsyJTTCDestIZxeENeZ05cFh X-Google-Smtp-Source: APiQypKaxfcT+YeC4PvSUl2qmq321wZ6VvcD8xu3RyqqPjlAm3QeVdsqlgsl0AaoaxthVj3ddlGQW43W+DbEoRrFjsval54CmH2V MIME-Version: 1.0 X-Received: by 2002:a6b:7319:: with SMTP id e25mr10505817ioh.193.1588487771556; Sat, 02 May 2020 23:36:11 -0700 (PDT) Date: Sat, 02 May 2020 23:36:11 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005a8fe005a4b8a114@google.com> Subject: BUG: stack guard page was hit in unwind_next_frame From: syzbot To: bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, peterz@infradead.org, shile.zhang@linux.alibaba.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" 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: 8999dc89 net/x25: Fix null-ptr-deref in x25_disconnect git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=16004440100000 kernel config: https://syzkaller.appspot.com/x/.config?x=b7a70e992f2f9b68 dashboard link: https://syzkaller.appspot.com/bug?extid=e73ceacfd8560cc8a3ca 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+e73ceacfd8560cc8a3ca@syzkaller.appspotmail.com bridge4: port 1(bond0) entered blocking state bridge4: port 1(bond0) entered disabled state BUG: stack guard page was hit at 000000008ec16325 (stack is 0000000068a067dc..00000000b4f7fcaf) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7601 Comm: syz-executor.0 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unwind_next_frame+0xe4/0x19d0 arch/x86/kernel/unwind_orc.c:386 Code: 41 5d 41 5e 41 5f c3 4d 8d 67 48 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 39 12 00 00 49 8b 47 48 <48> 89 44 24 10 49 8d 47 38 48 89 c2 48 89 04 24 48 b8 00 00 00 00 RSP: 0018:ffffc9000cd07fe8 EFLAGS: 00010246 RAX: ffffffff81327f33 RBX: 1ffff920019a1005 RCX: ffffc9000cd08200 RDX: 1ffff920019a1038 RSI: 0000000000000000 RDI: ffffc9000cd08178 RBP: 0000000000000001 R08: 0000000000000001 R09: ffffc9000cd081a0 R10: ffffc9000cd081cf R11: fffff520019a1039 R12: ffffc9000cd081c0 R13: fffff520019a1031 R14: fffff520019a1030 R15: ffffc9000cd08178 FS: 00007ff0d192f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000cd07ff8 CR3: 000000005d606000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __unwind_start arch/x86/kernel/unwind_orc.c:655 [inline] __unwind_start+0x474/0x820 arch/x86/kernel/unwind_orc.c:585 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0x57/0xd0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123 save_stack+0x1b/0x40 mm/kasan/common.c:49 set_track mm/kasan/common.c:57 [inline] __kasan_kmalloc mm/kasan/common.c:495 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468 slab_post_alloc_hook mm/slab.h:586 [inline] slab_alloc_node mm/slab.c:3263 [inline] kmem_cache_alloc_node+0x13c/0x760 mm/slab.c:3575 __alloc_skb+0xba/0x5a0 net/core/skbuff.c:198 alloc_skb include/linux/skbuff.h:1083 [inline] nlmsg_new include/net/netlink.h:888 [inline] rtmsg_ifinfo_build_skb+0x72/0x1a0 net/core/rtnetlink.c:3695 rtmsg_ifinfo_event.part.0+0x49/0xe0 net/core/rtnetlink.c:3731 rtmsg_ifinfo_event net/core/rtnetlink.c:5512 [inline] rtnetlink_event+0x11e/0x150 net/core/rtnetlink.c:5505 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_change_features+0x61/0xb0 net/core/dev.c:9117 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] netdev_features_change net/core/dev.c:1364 [inline] netdev_update_features net/core/dev.c:9101 [inline] netdev_update_features+0xc4/0xd0 net/core/dev.c:9098 netdev_sync_lower_features net/core/dev.c:8910 [inline] __netdev_update_features+0x821/0x12f0 net/core/dev.c:9045 netdev_update_features+0x63/0xd0 net/core/dev.c:9100 dev_disable_lro+0x45/0x320 net/core/dev.c:1592 br_add_if+0x8c5/0x1810 net/bridge/br_if.c:633 do_set_master net/core/rtnetlink.c:2470 [inline] do_set_master+0x1d7/0x230 net/core/rtnetlink.c:2443 do_setlink+0xaa2/0x3680 net/core/rtnetlink.c:2605 __rtnl_newlink+0xad5/0x1590 net/core/rtnetlink.c:3266 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3391 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5454 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362 ___sys_sendmsg+0x100/0x170 net/socket.c:2416 __sys_sendmsg+0xec/0x1b0 net/socket.c:2449 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c829 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff0d192ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000500a40 RCX: 000000000045c829 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009fe R14: 00000000004ccb57 R15: 00007ff0d192f6d4 Modules linked in: ---[ end trace 9178e0e56bfc9183 ]--- RIP: 0010:unwind_next_frame+0xe4/0x19d0 arch/x86/kernel/unwind_orc.c:386 Code: 41 5d 41 5e 41 5f c3 4d 8d 67 48 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 39 12 00 00 49 8b 47 48 <48> 89 44 24 10 49 8d 47 38 48 89 c2 48 89 04 24 48 b8 00 00 00 00 RSP: 0018:ffffc9000cd07fe8 EFLAGS: 00010246 RAX: ffffffff81327f33 RBX: 1ffff920019a1005 RCX: ffffc9000cd08200 RDX: 1ffff920019a1038 RSI: 0000000000000000 RDI: ffffc9000cd08178 RBP: 0000000000000001 R08: 0000000000000001 R09: ffffc9000cd081a0 R10: ffffc9000cd081cf R11: fffff520019a1039 R12: ffffc9000cd081c0 R13: fffff520019a1031 R14: fffff520019a1030 R15: ffffc9000cd08178 FS: 00007ff0d192f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000cd07ff8 CR3: 000000005d606000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.