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 CDAC4C25B08 for ; Sun, 21 Aug 2022 02:04:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236374AbiHUCEf (ORCPT ); Sat, 20 Aug 2022 22:04:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236072AbiHUCE1 (ORCPT ); Sat, 20 Aug 2022 22:04:27 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 423D117A8E for ; Sat, 20 Aug 2022 19:04:26 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id t7-20020a6b6407000000b00684ed320f97so4270052iog.11 for ; Sat, 20 Aug 2022 19:04:26 -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; bh=8DXCsqDwMlY8bkEPsMdGfPqYVLUcBI/2W2rtPo8M28Y=; b=sD0cLxcvslOSIYHoTFHPzSgAW9ant3YFj1HgnXpzkuyVrABf1YZN1/sBfQrky/UxGH V/wrHTuGO6oAiTs9TUVZ6MiqvlpwpWyl0FDU3rrvPq8WRsMpe5kCfnEz2qE3RS4XvSe0 sAHq9WRnTf9lYUFvfs+cY1JFSU9hoTCl52H/JdSGdvLo+kG0n2AZKt5goIQ1Z4Wc29nW GJMPOH3jVlnr0d5/jno68557lQ2OqhEFMLDp5m+vDmtOWaRbYeLLacm3FQiTDWtkEd7H QwH1vHVzsJgDa1eLbzCFJ26Q8c/4kmJw+HqZPwvc1Qamf5vPKf9lfDcL0zI9BSqoV7Li gDAw== X-Gm-Message-State: ACgBeo3htV+gIlzqXdSbRNVsjsvyu83OfcYV8yEN4WRBEavf8/lnavKG En6uUIr8xs+RY/qIEY7dWixFjVWKtXEVYZhsAbCYy7qWzrBe X-Google-Smtp-Source: AA6agR6pVg53ZXyKGtfREadSfTef7vhzkIS25thAsLMzDU8crgMXvGs7U2HlaFfQDP5oE4O+naLvwD5sJWGNFgxk4WYz12C4sZOW MIME-Version: 1.0 X-Received: by 2002:a05:6638:2482:b0:343:3ab0:4925 with SMTP id x2-20020a056638248200b003433ab04925mr6375704jat.173.1661047465474; Sat, 20 Aug 2022 19:04:25 -0700 (PDT) Date: Sat, 20 Aug 2022 19:04:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002282c605e6b6c0e1@google.com> Subject: [syzbot] upstream boot error: stack segment fault in __alloc_skb From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, netdev@vger.kernel.org, pabeni@redhat.com, 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: 3cc40a443a04 Merge tag 'nios2_fixes_v6.0' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10720067080000 kernel config: https://syzkaller.appspot.com/x/.config?x=f267ed4fb258122a dashboard link: https://syzkaller.appspot.com/bug?extid=b8a1f71feb027c4e2f06 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b8a1f71feb027c4e2f06@syzkaller.appspotmail.com usbcore: registered new interface driver nfcmrvl Loading iSCSI transport class v2.0-870. scsi host0: Virtio SCSI HBA st: Version 20160209, fixed bufsize 32768, s/g segs 256 Rounding down aligned max_sectors from 4294967295 to 4294967288 db_root: cannot open: /etc/target slram: not enough parameters. ftl_cs: FTL header not found. wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) MACsec IEEE 802.1AE tun: Universal TUN/TAP device driver, 1.6 vcan: Virtual CAN interface driver vxcan: Virtual CAN Tunnel driver slcan: serial line CAN interface driver CAN device driver interface usbcore: registered new interface driver usb_8dev usbcore: registered new interface driver ems_usb usbcore: registered new interface driver gs_usb usbcore: registered new interface driver kvaser_usb usbcore: registered new interface driver mcba_usb usbcore: registered new interface driver peak_usb e100: Intel(R) PRO/100 Network Driver e100: Copyright(c) 1999-2006 Intel Corporation e1000: Intel(R) PRO/1000 Network Driver e1000: Copyright (c) 1999-2006 Intel Corporation. e1000e: Intel(R) PRO/1000 Network Driver e1000e: Copyright(c) 1999 - 2015 Intel Corporation. mkiss: AX.25 Multikiss, Hans Albas PE1AYX AX.25: 6pack driver, Revision: 0.3.0 AX.25: bpqether driver version 004 PPP generic driver version 2.4.2 PPP BSD Compression module registered PPP Deflate Compression module registered PPP MPPE Compression module registered NET: Registered PF_PPPOX protocol family PPTP driver version 0.8.5 SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). CSLIP: code copyright 1989 Regents of the University of California. SLIP linefill/keepalive option. hdlc: HDLC support module revision 1.22 LAPB Ethernet driver version 0.02 usbcore: registered new interface driver ath9k_htc usbcore: registered new interface driver carl9170 usbcore: registered new interface driver ath6kl_usb usbcore: registered new interface driver ar5523 usbcore: registered new interface driver ath10k_usb usbcore: registered new interface driver rndis_wlan mac80211_hwsim: initializing netlink stack segment: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc1-syzkaller-00017-g3cc40a443a04 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:__kmalloc_node_track_caller+0x17a/0x3f0 mm/slub.c:4955 Code: 00 48 c1 e8 3a 44 39 f0 0f 85 24 01 00 00 49 8b 3c 24 40 f6 c7 0f 0f 85 73 02 00 00 45 84 c0 0f 84 6c 02 00 00 41 8b 44 24 28 <48> 8b 5c 05 00 48 8d 4a 08 48 89 e8 65 48 0f c7 0f 0f 94 c0 a8 01 RSP: 0000:ffffc90000067858 EFLAGS: 00010202 RAX: 0000000000000800 RBX: 0000000000082cc0 RCX: 0000000000000000 RDX: 0000000000003088 RSI: 0000000000082cc0 RDI: 000000000003d960 RBP: ffff000000000000 R08: dffffc0000000001 R09: fffffbfff1c4ade6 R10: fffffbfff1c4ade6 R11: 1ffffffff1c4ade5 R12: ffff888012042140 R13: 0000000000082cc0 R14: 00000000ffffffff R15: 0000000000001000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000ca8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmalloc_reserve net/core/skbuff.c:358 [inline] __alloc_skb+0x11d/0x620 net/core/skbuff.c:430 alloc_skb include/linux/skbuff.h:1257 [inline] nlmsg_new include/net/netlink.h:953 [inline] ctrl_build_mcgrp_msg net/netlink/genetlink.c:997 [inline] genl_ctrl_event+0x16f/0xc40 net/netlink/genetlink.c:1083 genl_register_family+0x10df/0x1390 net/netlink/genetlink.c:432 hwsim_init_netlink+0x21/0x9b drivers/net/wireless/mac80211_hwsim.c:4972 init_mac80211_hwsim+0x185/0xa08 drivers/net/wireless/mac80211_hwsim.c:5285 do_one_initcall+0xbd/0x2b0 init/main.c:1296 do_initcall_level+0x168/0x218 init/main.c:1369 do_initcalls+0x4b/0x8c init/main.c:1385 kernel_init_freeable+0x43a/0x5c3 init/main.c:1611 kernel_init+0x19/0x2b0 init/main.c:1500 ret_from_fork+0x1f/0x30 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__kmalloc_node_track_caller+0x17a/0x3f0 mm/slub.c:4955 Code: 00 48 c1 e8 3a 44 39 f0 0f 85 24 01 00 00 49 8b 3c 24 40 f6 c7 0f 0f 85 73 02 00 00 45 84 c0 0f 84 6c 02 00 00 41 8b 44 24 28 <48> 8b 5c 05 00 48 8d 4a 08 48 89 e8 65 48 0f c7 0f 0f 94 c0 a8 01 RSP: 0000:ffffc90000067858 EFLAGS: 00010202 RAX: 0000000000000800 RBX: 0000000000082cc0 RCX: 0000000000000000 RDX: 0000000000003088 RSI: 0000000000082cc0 RDI: 000000000003d960 RBP: ffff000000000000 R08: dffffc0000000001 R09: fffffbfff1c4ade6 R10: fffffbfff1c4ade6 R11: 1ffffffff1c4ade5 R12: ffff888012042140 R13: 0000000000082cc0 R14: 00000000ffffffff R15: 0000000000001000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000ca8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 48 c1 add %cl,-0x3f(%rax) 3: e8 3a 44 39 f0 callq 0xf0394442 8: 0f 85 24 01 00 00 jne 0x132 e: 49 8b 3c 24 mov (%r12),%rdi 12: 40 f6 c7 0f test $0xf,%dil 16: 0f 85 73 02 00 00 jne 0x28f 1c: 45 84 c0 test %r8b,%r8b 1f: 0f 84 6c 02 00 00 je 0x291 25: 41 8b 44 24 28 mov 0x28(%r12),%eax * 2a: 48 8b 5c 05 00 mov 0x0(%rbp,%rax,1),%rbx <-- trapping instruction 2f: 48 8d 4a 08 lea 0x8(%rdx),%rcx 33: 48 89 e8 mov %rbp,%rax 36: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) 3b: 0f 94 c0 sete %al 3e: a8 01 test $0x1,%al --- 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.