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=-0.8 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 89810C43441 for ; Tue, 13 Nov 2018 16:38:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 52364216FD for ; Tue, 13 Nov 2018 16:38:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 52364216FD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.us Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731043AbeKNChD (ORCPT ); Tue, 13 Nov 2018 21:37:03 -0500 Received: from mout.gmx.net ([212.227.17.21]:36939 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726459AbeKNChD (ORCPT ); Tue, 13 Nov 2018 21:37:03 -0500 Received: from dhcp-41-57.bos.redhat.com ([66.187.233.206]) by mail.gmx.com (mrgmx102 [212.227.17.174]) with ESMTPSA (Nemesis) id 0MIhDo-1gKOmP3TmC-002JUc; Tue, 13 Nov 2018 17:38:10 +0100 Message-ID: <1542127087.12945.14.camel@gmx.us> Subject: WARNING: CPU: 31 PID: 15473 at lib/iov_iter.c:1109 iov_iter_pipe+0xe0/0xe8 From: Qian Cai To: linux-kernel@vger.kernel.org Cc: Alexander Viro Date: Tue, 13 Nov 2018 11:38:07 -0500 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.6 (3.22.6-10.el7) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:BWeNQwBTpLjghCicMGrKaU3NQeD7Sn0OfeMqjSGZrSAvihUWO02 kLdwltZX3s41mT6dliOITSzOMG/Mww2vlvoNH7HatxmO7qINuidZL80zvmHLGQkpRA48Hfy 7Wr4Dxw5zoW3YGLZkXXGtIwZibbIfBVa8lyOJLcEXDvfRACAAenjl6M0eO9M7qxrPAbbBu9 vl/HiuR8gwX1euQN2cP2Q== X-UI-Out-Filterresults: notjunk:1;V01:K0:fhz91G+4t9s=:ENrHkCF+KAqp3y+6iGikeB IrRLki7vUS//yKteIB+marC1NpU605MePPxAR2CsHLo26o08N0hAIKi+tlK+pptjSocHG9zPa Oww3mCYFI8ZUxSuxuGEzu/kFxwdWFzJt1XNDkhmp4fjRNVegOf91Wcs4G3v4TjoCyNt8VBPNK u/U1SKd+plPox7RnrI6f2VZ9Xn9pO6iyINP3LQczw1SEOroHzb0un+Ih+ZofHPsFyLhcgAmBd trpe01RDaQ4FTkwIWH+oYMy9T1inecaSN345bELne6q+ByS/DWjSAlkVLPDbCkE89ojOizKXE qE32jxhVbRWPgEQ1SLhK3M9sfQ8yfG4r7YX8DwDjCWdwt7+QeR/YoOykmqnP+a57PVeaV9FLX BKZGwr9QyQdZDxh1Rh2kiKzkCd7oSM30OGMs5Ynv/mKkKcHnLzehXkkXSoo72UeLQPsLiDJOU ju/wNQ6lVDezFm3yZubUCMh2ul5pZvF0XdhhJ5i0HKrhGWrUdgM/W1NT/gfjHR5QAu+7joq5V RWZuAGVWlRZWDYfxRBkdWZmqtoxVIA4TTKgHo3iexhk9gkdYSckOSQDtup9JiTnrMLP3h4umn VBPY7R/XEoKFeqaWRTc0hUMEAwyTTplf3UT1kb8pqA56KukbB8ELdqHD1+MW4/ZR46/GAPwxU CSHtPWB4PH3WEZRfoLAue+wRXG7F8Y2NkraB+rC7aAajOhJoqj2IS8VspRhNC7OhPo6cWmsnO /v9sSx+KYLYL8wjFG+9wohmBCcAjAJb6oie7poH7yiY0VVx8bJhU9WBlJpbJ13/6ROU2arfan KENSFcwQb8aa/zz7yGQa3FyFQVU9YRQBMzZxtEwudBC1U+WuOqoDAzB8nT885GltLAus5zvlx B+909tolzdUoEiru9e556nNbCuGtSpoV0a5m9fv2rs0vAhC9IHw+fRQFYC/3Gc Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Running the trinity fuzzer with a non-root user on an aarch64 server with the latest mainline (rc2) generated this, [  378.743211] WARNING: CPU: 31 PID: 15473 at lib/iov_iter.c:1109 iov_iter_pipe+0xe0/0xe8 [  378.751590] Modules linked in: bridge 8021q garp mrp stp llc dlci tcp_diag inet_diag af_key pptp gre l2tp_ppp l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel pppoe pppox ppp_generic slhc crypto_user ib_core nfnetlink scsi_transport_iscsi atm sctp vfat fat ghash_ce sha2_ce sha256_arm64 sha1_ce ses enclosure ipmi_ssif sg ipmi_si ipmi_devintf sbsa_gwdt ipmi_msghandler sch_fq_codel xfs libcrc32c marvell mpt3sas mlx5_core raid_class hibmc_drm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ixgbe hisi_sas_v2_hw igb hisi_sas_main libsas hns_dsaf mlxfw devlink hns_enet_drv mdio i2c_designware_platform i2c_algo_bit i2c_designware_core ehci_platform scsi_transport_sas hns_mdio hnae dm_mirror dm_region_hash dm_log dm_mod [  378.816574] CPU: 31 PID: 15473 Comm: trinity-c168 Kdump: loaded Tainted: G        W         4.20.0-rc2+ #16 [  378.826317] Hardware name: Huawei TaiShan 2280 /BC11SPCD, BIOS 1.50 06/01/2018 [  378.833542] pstate: 60000005 (nZCv daif -PAN -UAO) [  378.838344] pc : iov_iter_pipe+0xe0/0xe8 [  378.842268] lr : iov_iter_pipe+0x40/0xe8 [  378.846191] sp : ffff801e101a78e0 [  378.849506] x29: ffff801e101a78e0 x28: ffff801e101a7c48  [  378.854823] x27: 0000000000000004 x26: ffff801668e511c0  [  378.860139] x25: 0000000000000003 x24: ffff801e0f989148  [  378.865456] x23: ffff801e0f989150 x22: 0000000000000010  [  378.870778] x21: 000000005ffffffd x20: ffff801e0f989080  [  378.876098] x19: ffff801e101a79b0 x18: 0000000000000000  [  378.881415] x17: 0000000000000001 x16: 0000000000000000  [  378.886732] x15: 0000000000000000 x14: 0000000000000000  [  378.892047] x13: 0000000000000000 x12: ffff1003c2034f38  [  378.897363] x11: 1ffff003c2034f37 x10: ffff1003c2034f37  [  378.902678] x9 : 0000000000000000 x8 : 00000000f1f1f1f1  [  378.907994] x7 : dfff200000000000 x6 : 00000000f2f2f2f2  [  378.913309] x5 : 00000000f2f2f200 x4 : dfff200000000000  [  378.918625] x3 : 000000005ffffffd x2 : 0000000000000003  [  378.923942] x1 : ffff801e0f989150 x0 : 0000000000000010  [  378.929259] Call trace: [  378.931712]  iov_iter_pipe+0xe0/0xe8 [  378.935294]  generic_file_splice_read+0xb0/0x308 [  378.939914]  do_splice_to+0xa4/0xd8 [  378.943406]  splice_direct_to_actor+0x164/0x3b8 [  378.947942]  do_splice_direct+0x148/0x1c8 [  378.951959]  do_sendfile+0x2e4/0x568 [  378.955539]  __arm64_sys_sendfile64+0x14c/0x268 [  378.960076]  el0_svc_handler+0xd4/0x198 [  378.963914]  el0_svc+0x8/0xc [  378.966796] irq event stamp: 56628 [  378.970202] hardirqs last  enabled at (56627): [] quarantine_put+0xbc/0x170 [  378.978729] hardirqs last disabled at (56628): [] do_debug_exception+0xd8/0x190 [  378.987605] softirqs last  enabled at (56380): [] __do_softirq+0x7c8/0x9c8 [  378.996048] softirqs last disabled at (56373): [] irq_exit+0x25c/0x2f0 [  379.004139] ---[ end trace 598902d30712b79d ]---