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=-3.7 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 D695AC4320A for ; Sat, 31 Jul 2021 14:48:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B751B60F00 for ; Sat, 31 Jul 2021 14:48:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233255AbhGaOse (ORCPT ); Sat, 31 Jul 2021 10:48:34 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:53193 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233109AbhGaOs3 (ORCPT ); Sat, 31 Jul 2021 10:48:29 -0400 Received: by mail-io1-f72.google.com with SMTP id n22-20020a6bf6160000b0290520c8d13420so7891003ioh.19 for ; Sat, 31 Jul 2021 07:48:23 -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:in-reply-to:message-id:subject :from:to; bh=GnCHPHIAZGrBSipZAlOzb9JHVlmDvHpAlEidlqyUeQA=; b=ob4L+q6cAwdFHHtD/RAb0AyRpIUtL5dsfut7wAS5C3lI8ZQFBdvjX9uAknbEhpgZXR b/VwTtDjQ1fQM3YbWRlOTt+hagtgMsAT5peD+VFxZhvOBnK1ikxfWi6zZLWB5jPYpTNb bggrLXPmg+EpEzw+is9Os09IbfqjCEtncxIAFIybsP1HfsaThyX83tnTFwsZaPk8sdgZ QqV+2q0RmdssFNk5Xn/TBYbjOTFObe9spV6kbAcWbWEcG07T9KeqO6niMPP0eSCNw0d1 d2q6j3eBJmzeIFFUSJXZ6Xh1ZeqKNo33SHllTe5e3oV0IBJwDD0XYuKYusk5BEcD3g6t FJfQ== X-Gm-Message-State: AOAM5320GvSXO7hKQsPLmfChcn3tLBR/wTdsnnuehxS01fAiUcoMVrda 2Lb9nBXSgajHw3JB9QdFrMBeZtcmiIJPEsBbCCpBKVDLApD0 X-Google-Smtp-Source: ABdhPJy1emLbDRUY+QVC86+ky0OabWKbWgTxPEZWDGuiQXaNJVa1PMjzE3Qncwg4B5g924VtI9MEq+9c5Se7lkFPbdKLgAZ+PXq+ MIME-Version: 1.0 X-Received: by 2002:a05:6638:3048:: with SMTP id u8mr6518279jak.91.1627742903086; Sat, 31 Jul 2021 07:48:23 -0700 (PDT) Date: Sat, 31 Jul 2021 07:48:23 -0700 In-Reply-To: <000000000000f94f5405c284e370@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008637e205c86c6dac@google.com> Subject: Re: [syzbot] general protection fault in tls_sk_proto_close (3) From: syzbot To: akpm@linux-foundation.org, borisp@nvidia.com, bp@alien8.de, daniel@iogearbox.net, davem@davemloft.net, hpa@zytor.com, jmattson@google.com, john.fastabend@gmail.com, joro@8bytes.org, kuba@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, masahiroy@kernel.org, mingo@redhat.com, netdev@vger.kernel.org, pbonzini@redhat.com, peterz@infradead.org, rafael.j.wysocki@intel.com, rostedt@goodmis.org, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, will@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 8d67041228ac Merge tag 'linux-can-fixes-for-5.14-20210730'.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=17a6e966300000 kernel config: https://syzkaller.appspot.com/x/.config?x=42748795a8952874 dashboard link: https://syzkaller.appspot.com/bug?extid=29c3c12f3214b85ad081 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11c631b2300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1519451e300000 The issue was bisected to: commit 997acaf6b4b59c6a9c259740312a69ea549cc684 Author: Mark Rutland Date: Mon Jan 11 15:37:07 2021 +0000 lockdep: report broken irq restoration bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11a85786d00000 final oops: https://syzkaller.appspot.com/x/report.txt?x=13a85786d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=15a85786d00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+29c3c12f3214b85ad081@syzkaller.appspotmail.com Fixes: 997acaf6b4b5 ("lockdep: report broken irq restoration") general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 PID: 9805 Comm: syz-executor059 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tls_sk_proto_close+0xd8/0xaf0 net/tls/tls_main.c:304 Code: 02 00 0f 85 16 09 00 00 48 8b 85 f0 02 00 00 4d 8d 6c 24 14 4c 89 ea 48 c1 ea 03 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 4c 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 4f 07 00 00 RSP: 0018:ffffc9000afffc60 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff87c151d3 RDI: ffff888147a24170 RBP: ffff888147a23e80 R08: 0000000000000001 R09: 00000000fffffff0 R10: ffffffff87c15461 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000014 R14: ffff88803d517908 R15: 0000000000000001 FS: 000000000076f400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb379600000 CR3: 000000003d560000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tls_sk_proto_close+0x356/0xaf0 net/tls/tls_main.c:327 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:478 __sock_release+0xcd/0x280 net/socket.c:648 sock_close+0x18/0x20 net/socket.c:1300 __fput+0x288/0x920 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:209 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x40c81b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007fffc346f8f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000040c81b RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000005 RBP: 00000000000149a5 R08: 0000000000000000 R09: 0000000000000000 R10: 00007fffc346f940 R11: 0000000000000293 R12: 00007fffc346f940 R13: 00007fffc346f960 R14: 0000000000405060 R15: 00007fffc346f9d0 Modules linked in: ---[ end trace 6a958f78622ad753 ]--- RIP: 0010:tls_sk_proto_close+0xd8/0xaf0 net/tls/tls_main.c:304 Code: 02 00 0f 85 16 09 00 00 48 8b 85 f0 02 00 00 4d 8d 6c 24 14 4c 89 ea 48 c1 ea 03 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 4c 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 4f 07 00 00 RSP: 0018:ffffc9000afffc60 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff87c151d3 RDI: ffff888147a24170 RBP: ffff888147a23e80 R08: 0000000000000001 R09: 00000000fffffff0 R10: ffffffff87c15461 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000014 R14: ffff88803d517908 R15: 0000000000000001 FS: 000000000076f400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb379600000 CR3: 000000003d560000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400