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 21F29C433F5 for ; Sun, 9 Oct 2022 05:43:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229790AbiJIFnk (ORCPT ); Sun, 9 Oct 2022 01:43:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229722AbiJIFni (ORCPT ); Sun, 9 Oct 2022 01:43:38 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAFA82B187 for ; Sat, 8 Oct 2022 22:43:35 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id i21-20020a056e021d1500b002f9e4f8eab7so6566042ila.7 for ; Sat, 08 Oct 2022 22:43:35 -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:message-id:reply-to; bh=OkiLQRhmSLtuh1o8dvwMX2015uWLVIf0Afm2i0Kxr0I=; b=zzGzDYGmJ7xbcpfXWxKpYl4H3NLjlTsLWtYTxvfj9GtnQ4KlmKH6Tscanq5CTv9ZFo ci1vCbbFBkj5klBAEwjhR8O+weC/wyPvxUVCjr7Z3L3OL+Q3exkGxvoqAjngOvAt3dNg hASgtiSCA1p4n4FCtn6IcVJegYtq+C9MZtq8XPi7HFirh4DB+5TGPIe4T70xMNvDdpS2 auPfCTIb7MxkQGW9xOEx9Umk1+yhLiVmXIA6r2Po8WAcSStLNn8BE6W5tz9X7r6B+vwD MEHXgk4SY1yxgaHX21FQPUM7wtN2agaKMuYlqqaun1Q6hA7SMDajxQ07yKgSlUH/lwwx KJcw== X-Gm-Message-State: ACrzQf3ax1DUxONGotgQb8BhgBfTBmo6u/SSnrM5P0aRd1sMg1j3AL9P B0WLACGK48eEjcDM+KJ3t3M4+tV1vhdORUJhBhRkzShMbuVn X-Google-Smtp-Source: AMsMyM7v1OPqx2GCvMc8TRZL35mPVQq/caKFC0BTkKYxkTlB2UZh8Cek4g7jA9i2vaVx0q1yeMd370FUGo+twQVQ8XHbLgSbGclH MIME-Version: 1.0 X-Received: by 2002:a05:6602:98:b0:6a2:1723:bee1 with SMTP id h24-20020a056602009800b006a21723bee1mr5442197iob.58.1665294215268; Sat, 08 Oct 2022 22:43:35 -0700 (PDT) Date: Sat, 08 Oct 2022 22:43:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000025d09b05ea9386ab@google.com> Subject: [syzbot] general protection fault in rose_send_frame (2) From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, ralf@linux-mips.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 0326074ff465 Merge tag 'net-next-6.1' of git://git.kernel... git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1686bcdc880000 kernel config: https://syzkaller.appspot.com/x/.config?x=796b7c2847a6866a dashboard link: https://syzkaller.appspot.com/bug?extid=b25099bc0c49d0c2962e compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b58a97ee1509/disk-0326074f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ba3e08c86725/vmlinux-0326074f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b25099bc0c49d0c2962e@syzkaller.appspotmail.com general protection fault, probably for non-canonical address 0xdffffc0000000070: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387] CPU: 0 PID: 18027 Comm: syz-executor.2 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 80 03 00 00 e9 77 fe ff ff RSP: 0018:ffffc90000007b00 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88802690b800 RCX: 0000000000000100 RDX: 0000000000000070 RSI: ffffffff88514482 RDI: 0000000000000380 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802690b800 R13: 0000000000000078 R14: ffff88802f169640 R15: 0000000000000010 FS: 00007f83f2834700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff318aaf940 CR3: 0000000063a3f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255 rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009 rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:stackdepot_memcmp lib/stackdepot.c:279 [inline] RIP: 0010:find_stack lib/stackdepot.c:295 [inline] RIP: 0010:__stack_depot_save+0x145/0x500 lib/stackdepot.c:435 Code: 29 48 85 ed 75 12 e9 92 00 00 00 48 8b 6d 00 48 85 ed 0f 84 85 00 00 00 39 5d 08 75 ee 44 3b 7d 0c 75 e8 31 c0 48 8b 74 c5 18 <49> 39 34 c6 75 db 48 83 c0 01 48 39 c2 75 ec 48 8b 7c 24 28 48 85 RSP: 0018:ffffc9001499eb88 EFLAGS: 00000216 RAX: 000000000000000d RBX: 0000000021011daf RCX: ffff88823b48ed78 RDX: 0000000000000016 RSI: ffffffff879583d3 RDI: 000000005430cc72 RBP: ffff8880784e7240 R08: 00000000498c1a10 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008c07c R12: 0000000000000001 R13: 0000000000008dc0 R14: ffffc9001499ebf8 R15: 0000000000000016 kasan_save_stack+0x2e/0x40 mm/kasan/common.c:39 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:437 [inline] ____kasan_kmalloc mm/kasan/common.c:516 [inline] ____kasan_kmalloc mm/kasan/common.c:475 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:525 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] ref_tracker_alloc+0x14c/0x550 lib/ref_tracker.c:85 __netdev_tracker_alloc include/linux/netdevice.h:3995 [inline] netdev_hold include/linux/netdevice.h:4024 [inline] netdev_hold include/linux/netdevice.h:4019 [inline] neigh_parms_alloc+0x255/0x5f0 net/core/neighbour.c:1707 inetdev_init+0x133/0x580 net/ipv4/devinet.c:269 inetdev_event+0xa85/0x1610 net/ipv4/devinet.c:1534 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] call_netdevice_notifiers net/core/dev.c:1997 [inline] register_netdevice+0x10bb/0x1670 net/core/dev.c:10086 veth_newlink+0x338/0x990 drivers/net/veth.c:1764 rtnl_newlink_create net/core/rtnetlink.c:3364 [inline] __rtnl_newlink+0x1087/0x17e0 net/core/rtnetlink.c:3581 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3594 rtnetlink_rcv_msg+0x43a/0xca0 net/core/rtnetlink.c:6091 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f83f168a5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f83f2834168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f83f17abf80 RCX: 00007f83f168a5a9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007 RBP: 00007f83f16e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf014405f R14: 00007f83f2834300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 80 03 00 00 e9 77 fe ff ff RSP: 0018:ffffc90000007b00 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88802690b800 RCX: 0000000000000100 RDX: 0000000000000070 RSI: ffffffff88514482 RDI: 0000000000000380 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802690b800 R13: 0000000000000078 R14: ffff88802f169640 R15: 0000000000000010 FS: 00007f83f2834700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff318aaf940 CR3: 0000000063a3f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 c1 ea 03 shr $0x3,%rdx 4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 8: 0f 85 06 01 00 00 jne 0x114 e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 48 8b 6b 20 mov 0x20(%rbx),%rbp 1c: 48 8d bd 80 03 00 00 lea 0x380(%rbp),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 ea 00 00 00 jne 0x11e 34: 4c 8b bd 80 03 00 00 mov 0x380(%rbp),%r15 3b: e9 77 fe ff ff jmpq 0xfffffeb7 --- 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.