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=-4.0 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 AEF03C433E0 for ; Fri, 24 Jul 2020 19:23:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 882822065E for ; Fri, 24 Jul 2020 19:23:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726617AbgGXTXV (ORCPT ); Fri, 24 Jul 2020 15:23:21 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:32843 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726381AbgGXTXU (ORCPT ); Fri, 24 Jul 2020 15:23:20 -0400 Received: by mail-il1-f199.google.com with SMTP id c1so6362962ilr.0 for ; Fri, 24 Jul 2020 12:23:19 -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=ZFrCqHnU0jwNxTDbdv/+Y2rg6p740vaEs4B70N81Dt4=; b=SaPUUPe/EgX9rpu1kyUykLGmqVGxvzUD/aGDyyjUeiA+oBrGGVyn8w13wObGO7MxNj cE3oWguIjWmvdvMLfJ+fMO6Dv/gDsFgth1ntXWyI24ZW/8c8DJDr3hBrjc2s/6th9frw j2bwVfnLIuJeetESGFXyFxLJtNIDpvfWwFe8Eu11RCK2m3nJ50l2uzKFCMcqNcjFf7qN d8m/UAIgE9x+J12sDEgMzIo1W9qxQYbuaiyYAduYKeJESDOb91Mt74JOQl/pkwSUqQo1 YZzZxwNHIQWMMpWzg2so/7Vw/4PKkPJR0QVNppJ5kKyj5E0G0Sm9vy1hVmGlBvFlk09e 45uA== X-Gm-Message-State: AOAM530nLVwqS2NuUBIJ0l3B9r4Gp3FA8wspPjpxPRw+RMwXTXeb8l8n IjNaaYE0jWUHqxCD+MiM6IuvxJXSTJf226zfp2r1eBJdI0Qk X-Google-Smtp-Source: ABdhPJyiYXjAP74BUXo+JnuBfzva/JGy5CbxHrAyHoIncs1sRsBfWvnbytqgEz6PFEJXocWOxcfcQm7LxFbAA6279YCi4QFgfP3a MIME-Version: 1.0 X-Received: by 2002:a92:c205:: with SMTP id j5mr12051519ilo.137.1595618599068; Fri, 24 Jul 2020 12:23:19 -0700 (PDT) Date: Fri, 24 Jul 2020 12:23:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cb6afe05ab34e77e@google.com> Subject: BUG: stack guard page was hit in unwind_next_frame (2) From: syzbot To: bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mbenes@suse.cz, mingo@redhat.com, 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 issue on: HEAD commit: 5714ee50 copy_xstate_to_kernel: Fix typo which caused GDB .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=116964c8900000 kernel config: https://syzkaller.appspot.com/x/.config?x=f87a5e4232fdb267 dashboard link: https://syzkaller.appspot.com/bug?extid=5bdf123b3320cc241813 compiler: gcc (GCC) 10.1.0-syz 20200507 userspace arch: i386 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+5bdf123b3320cc241813@syzkaller.appspotmail.com BUG: stack guard page was hit at 00000000e936347d (stack is 00000000047987e0..00000000cd28eac3) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 24253 Comm: syz-executor.5 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unwind_next_frame+0x1e/0x1f90 arch/x86/kernel/unwind_orc.c:424 Code: 48 8b 0c 24 e9 72 ff ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 81 ec a0 00 00 00 <48> c7 44 24 40 b3 8a b5 41 48 8d 5c 24 40 48 c7 44 24 48 98 a5 67 RSP: 0018:ffffc90008367f68 EFLAGS: 00010282 RAX: dffffc0000000000 RBX: ffffc90008368118 RCX: ffffc90008368120 RDX: ffffc90008370000 RSI: 1ffff9200106d014 RDI: ffffc90008368090 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffc90008368090 R10: fffff5200106d01d R11: 0000000000000000 R12: fffff5200106d014 R13: fffff5200106d013 R14: ffffc900083680c8 R15: ffffc90008368090 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5cfeb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffc90008367f58 CR3: 00000000524e1000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __unwind_start+0x4dd/0x7c0 arch/x86/kernel/unwind_orc.c:698 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0x5e/0xf0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123 save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494 slab_post_alloc_hook mm/slab.h:586 [inline] slab_alloc_node mm/slab.c:3263 [inline] kmem_cache_alloc_node+0x130/0x3c0 mm/slab.c:3575 __alloc_skb+0x71/0x550 net/core/skbuff.c:198 alloc_skb include/linux/skbuff.h:1083 [inline] nlmsg_new include/net/netlink.h:940 [inline] rtmsg_ifinfo_build_skb+0x72/0x1a0 net/core/rtnetlink.c:3701 rtmsg_ifinfo_event net/core/rtnetlink.c:3737 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:3728 [inline] rtnetlink_event+0x123/0x1d0 net/core/rtnetlink.c:5511 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline] bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] netdev_features_change net/core/dev.c:1443 [inline] netdev_sync_lower_features net/core/dev.c:9056 [inline] __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187 netdev_change_features+0x61/0xb0 net/core/dev.c:9259 Lost 528 message(s)! ---[ end trace 2343dddd6fe8f1bd ]--- RIP: 0010:unwind_next_frame+0x1e/0x1f90 arch/x86/kernel/unwind_orc.c:424 Code: 48 8b 0c 24 e9 72 ff ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 81 ec a0 00 00 00 <48> c7 44 24 40 b3 8a b5 41 48 8d 5c 24 40 48 c7 44 24 48 98 a5 67 RSP: 0018:ffffc90008367f68 EFLAGS: 00010282 RAX: dffffc0000000000 RBX: ffffc90008368118 RCX: ffffc90008368120 RDX: ffffc90008370000 RSI: 1ffff9200106d014 RDI: ffffc90008368090 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffc90008368090 R10: fffff5200106d01d R11: 0000000000000000 R12: fffff5200106d014 R13: fffff5200106d013 R14: ffffc900083680c8 R15: ffffc90008368090 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5cfeb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffc90008367f58 CR3: 00000000524e1000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. 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