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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DA6CECAAA1 for ; Mon, 12 Sep 2022 02:30:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229544AbiILCai (ORCPT ); Sun, 11 Sep 2022 22:30:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229453AbiILCag (ORCPT ); Sun, 11 Sep 2022 22:30:36 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14174222B9 for ; Sun, 11 Sep 2022 19:30:35 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id q10-20020a0566022f0a00b00688d703717bso4827092iow.9 for ; Sun, 11 Sep 2022 19:30:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date; bh=Di8X3M089ryXIqSi+X0Mg31Ntg6oMjT7LU5Szyi7A3w=; b=3jySjKpwbZGWT7U1yLVvHoAlJmjbXBCKh8oij51pdG/ktW+xEC0Cnw+Sqe3kYJYRvb wcYrfdI2xn44HWtc7g+fyCstjAQ/QXP2E0okV32atNnXc9iEGCEOBJR4JPnliUXEs9Eo exgOzXK/o5nz3rnM8sIkjy/P7dv0Kmgip4JTcaCE/J2AmG/ViM/mjEGF7KcPYo5y/vvi +7QQz4zB2tzmYx+3faVey24201ZB3DGf900SvCzgjORs90VTWg/Si4yzjjgFzSpIOXVk anquCqaF9FVMDjrgVs+llHZUnxUFoce41KOUnpjBWbZAf+SoIj8YJZBzH7V4wtVQ3oTD TOYw== X-Gm-Message-State: ACgBeo1ZqjkjEBsGcHaKZrY7WCgnk4FD4jgFXDcO2KYp7cvLVKRsMrAZ KX1QD3OiIMRZlfWATo9+7xEEevhVicHGuZgRFIGtvaIBOu1M X-Google-Smtp-Source: AA6agR6+f7p5acvwqLPa9Pb6cHQfFlwOBU+iwU5Wz24RKd2sKBrKMv9FwEDc2tStnV2uxSQO0FDRXC3Io45MlZF/8v3Eej5JHC5D MIME-Version: 1.0 X-Received: by 2002:a02:a791:0:b0:35a:14c6:f1e3 with SMTP id e17-20020a02a791000000b0035a14c6f1e3mr4787884jaj.215.1662949834322; Sun, 11 Sep 2022 19:30:34 -0700 (PDT) Date: Sun, 11 Sep 2022 19:30:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000027774b05e871ae18@google.com> Subject: [syzbot] WARNING in j1939_tp_rxtimer (2) From: syzbot To: davem@davemloft.net, edumazet@google.com, kernel@pengutronix.de, kuba@kernel.org, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, linux@rempel-privat.de, mkl@pengutronix.de, netdev@vger.kernel.org, pabeni@redhat.com, robin@protonic.nl, socketcan@hartkopp.net, 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: 0066f1b0e275 afs: Return -EAGAIN, not -EREMOTEIO, when a f.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=124a4c8f080000 kernel config: https://syzkaller.appspot.com/x/.config?x=5971bb33b0db1ef1 dashboard link: https://syzkaller.appspot.com/bug?extid=34dcf6bbda0e05f6b3ed compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 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+34dcf6bbda0e05f6b3ed@syzkaller.appspotmail.com WARNING: CPU: 0 PID: 15 at net/can/j1939/transport.c:1096 j1939_session_deactivate_activate_next net/can/j1939/transport.c:1106 [inline] WARNING: CPU: 0 PID: 15 at net/can/j1939/transport.c:1096 j1939_tp_rxtimer+0x821/0xa20 net/can/j1939/transport.c:1234 Modules linked in: CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:j1939_session_deactivate net/can/j1939/transport.c:1096 [inline] RIP: 0010:j1939_session_deactivate_activate_next net/can/j1939/transport.c:1106 [inline] RIP: 0010:j1939_tp_rxtimer+0x821/0xa20 net/can/j1939/transport.c:1234 Code: e8 c4 62 44 f8 48 8b 3c 24 e9 0a f9 ff ff e8 b6 62 44 f8 4c 89 f7 be 03 00 00 00 e8 79 7f f0 fa e9 52 f9 ff ff e8 9f 62 44 f8 <0f> 0b e9 fa f9 ff ff e8 93 62 44 f8 0f 0b e9 21 fb ff ff e8 87 62 RSP: 0018:ffffc90000147a90 EFLAGS: 00010246 RAX: ffffffff89453641 RBX: 0000000000000001 RCX: ffff8880122e3b00 RDX: 0000000000000301 RSI: 0000000000000001 RDI: 0000000000000002 RBP: dffffc0000000000 R08: ffffffff89453034 R09: ffffed100f764506 R10: ffffed100f764506 R11: 1ffff1100f764505 R12: 1ffff1100f764500 R13: ffff88807bb22800 R14: 1ffff1100f76451b R15: ffff88807bb228d8 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 000000001f158000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x1a1/0x580 kernel/time/hrtimer.c:1766 __do_softirq+0x382/0x793 kernel/softirq.c:571 run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934 smpboot_thread_fn+0x533/0x9d0 kernel/smpboot.c:164 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 --- 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.