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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 B5CABC433EF for ; Sun, 12 Sep 2021 10:14:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 868C1610FD for ; Sun, 12 Sep 2021 10:14:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231142AbhILKBk (ORCPT ); Sun, 12 Sep 2021 06:01:40 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:42596 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229540AbhILKBj (ORCPT ); Sun, 12 Sep 2021 06:01:39 -0400 Received: by mail-il1-f199.google.com with SMTP id p10-20020a92d28a000000b0022b5f9140f7so13263817ilp.9 for ; Sun, 12 Sep 2021 03:00:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=37fWN0G/4HK8xmkPsdQbAX2VRqns8WP+Gio4bv9hq2M=; b=59ahno1WWPZINPYy7U9lqhlB4kf/6or9ll36UeqDWzfFV7SahXywDfH2/PNrA6Fd0z s8HdAnyeParTH1ovSiIwhjP3hf5vt4ox3pZtRJTXSf1Oy3Fy9hLE00K10aCHjgCfOPnV 7pVM09C7NrnsTrsJDw9EDqPmJ5R9Z4rcUZ0n8UuM/0qmPtCeouJPhkFXRUVcYIWJDruq We2DwVoY3DReFGAgRag/VH2QlnCCiNKrncE0Bc+hYKtyBvfj2BBF8iW0rdwi3UHdy102 7lpDGTPmSgvMjiPT2teotkVPDM2yPz/z1Z+MyHMWq+npK67yHy+/YGm46ZEF5S9OzLQl uzjw== X-Gm-Message-State: AOAM533p+GByyH3qlTmx99iRBKXoN1ISeSNuFZ+mCCoPQ7q/h5VJgED9 4F4mKDQ5t6sdIx3DZ5ArYKaWKdq1sN3dyCooasEJsm499NN5 X-Google-Smtp-Source: ABdhPJyGovn8sIuOL2NuTQMTsh3raCZFTvD2LYAgiZNiSx1pCsKJqogmAdsMRMnv+J7iC47sQFNUedt2T97OeqILEyhiojHV3Bm2 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a8a:: with SMTP id k10mr4102082ilv.1.1631440825555; Sun, 12 Sep 2021 03:00:25 -0700 (PDT) Date: Sun, 12 Sep 2021 03:00:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e123b605cbc96a09@google.com> Subject: [syzbot] WARNING in __static_key_slow_dec_deferred From: syzbot To: ardb@kernel.org, jbaron@akamai.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, peterz@infradead.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: ac08b1c68d1b Merge tag 'pci-v5.15-changes' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13fb02ed300000 kernel config: https://syzkaller.appspot.com/x/.config?x=a7be4cf759c0440a dashboard link: https://syzkaller.appspot.com/bug?extid=3571c93ad7602c02dd81 compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14610b15300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10148bdb300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3571c93ad7602c02dd81@syzkaller.appspotmail.com ------------[ cut here ]------------ jump label: negative count! WARNING: CPU: 0 PID: 12137 at kernel/jump_label.c:235 static_key_slow_try_dec kernel/jump_label.c:235 [inline] WARNING: CPU: 0 PID: 12137 at kernel/jump_label.c:235 __static_key_slow_dec_deferred+0x15c/0x1c0 kernel/jump_label.c:286 Modules linked in: CPU: 1 PID: 12137 Comm: syz-executor068 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:static_key_slow_try_dec kernel/jump_label.c:235 [inline] RIP: 0010:__static_key_slow_dec_deferred+0x15c/0x1c0 kernel/jump_label.c:286 Code: 00 00 4c 89 ea 4c 89 f9 5b 41 5c 41 5d 41 5e 41 5f 5d e9 b7 7d aa ff e8 92 6e d8 ff 48 c7 c7 40 94 59 8a 31 c0 e8 c4 a2 a3 ff <0f> 0b e9 74 ff ff ff 48 c7 c1 44 c3 db 8d 80 e1 07 38 c1 0f 8c c3 RSP: 0018:ffffc9000918f980 EFLAGS: 00010246 RAX: 7cd782d8373e9e00 RBX: 00000000ffffffff RCX: ffff888016b49c80 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffffffff81681fc2 R09: ffffed10173857a8 R10: ffffed10173857a8 R11: 0000000000000000 R12: ffffffff8ddbe2b8 R13: ffffffff8ddbe2d0 R14: ffff8880205ef601 R15: 0000000000000064 FS: 00007f78f9b46700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004d0600 CR3: 0000000073b4f000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_free_lapic+0x9f/0x170 arch/x86/kvm/lapic.c:2211 kvm_arch_vcpu_create+0x844/0x970 arch/x86/kvm/x86.c:10751 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3592 [inline] kvm_vm_ioctl+0x1400/0x2910 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4314 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x445849 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f78f9b46308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445849 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 00000000004ca430 R08: 00007f78f9b46700 R09: 0000000000000000 R10: 00007f78f9b46700 R11: 0000000000000246 R12: 00000000004ca43c R13: 000000000049a074 R14: 6d766b2f7665642f R15: 0000000000022000 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches