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 CCF34C4167B for ; Thu, 7 Dec 2023 23:36:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1444125AbjLGXfw (ORCPT ); Thu, 7 Dec 2023 18:35:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229671AbjLGXfs (ORCPT ); Thu, 7 Dec 2023 18:35:48 -0500 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09AFD10F9 for ; Thu, 7 Dec 2023 15:35:54 -0800 (PST) Received: by mail-oi1-f197.google.com with SMTP id 5614622812f47-3b88ac1f09cso2215188b6e.2 for ; Thu, 07 Dec 2023 15:35:54 -0800 (PST) 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r24-20020a056808211800b003b9e48fd659mr1141532oiw.3.1701992153348; Thu, 07 Dec 2023 15:35:53 -0800 (PST) Date: Thu, 07 Dec 2023 15:35:53 -0800 In-Reply-To: <000000000000cb5b07060bef7ac0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b600cc060bf3ed15@google.com> Subject: Re: [syzbot] Re: [syzbot] [net?] WARNING in ip6_route_info_create From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [net?] WARNING in ip6_route_info_create Author: sinquersw@gmail.com #syz test: git@github.com:ThinkerYzu/linux.git fix-fib6_set_expires_locked On 12/7/23 10:17, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 5a08d0065a91 ipv6: add debug checks in fib6_info_release() > git tree: net-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=175698dae80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f8715b6ede5c4b90 > dashboard link: https://syzkaller.appspot.com/bug?extid=c15aa445274af8674f41 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16070374e80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=145e1574e80000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/12a59d7df47f/disk-5a08d006.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/14f0ca0a861e/vmlinux-5a08d006.xz > kernel image: https://storage.googleapis.com/syzbot-assets/ae9306decbe5/bzImage-5a08d006.xz > > The issue was bisected to: > > commit 5a08d0065a915ccf325563d7ca57fa8b4897881c > Author: Eric Dumazet > Date: Tue Dec 5 17:32:50 2023 +0000 > > ipv6: add debug checks in fib6_info_release() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1137437ae80000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=1337437ae80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1537437ae80000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+c15aa445274af8674f41@syzkaller.appspotmail.com > Fixes: 5a08d0065a91 ("ipv6: add debug checks in fib6_info_release()") > > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 5062 at include/net/ip6_fib.h:332 fib6_info_release include/net/ip6_fib.h:332 [inline] > WARNING: CPU: 0 PID: 5062 at include/net/ip6_fib.h:332 ip6_route_info_create+0x1a1a/0x1f10 net/ipv6/route.c:3829 > Modules linked in: > CPU: 0 PID: 5062 Comm: syz-executor399 Not tainted 6.7.0-rc3-syzkaller-00805-g5a08d0065a91 #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 > RIP: 0010:fib6_info_release include/net/ip6_fib.h:332 [inline] > RIP: 0010:ip6_route_info_create+0x1a1a/0x1f10 net/ipv6/route.c:3829 > Code: 49 83 7f 40 00 75 28 e8 04 ae 50 f8 49 8d bf a0 00 00 00 48 c7 c6 c0 ae 37 89 e8 41 2c 3a f8 e9 65 f4 ff ff e8 e7 ad 50 f8 90 <0f> 0b 90 eb ad e8 dc ad 50 f8 90 0f 0b 90 eb cd e8 d1 ad 50 f8 e8 > RSP: 0018:ffffc900039cf8e0 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: 0000000000400000 RCX: ffffffff8936e418 > RDX: ffff888014695940 RSI: ffffffff8936e469 RDI: 0000000000000005 > RBP: ffffc900039cf9d0 R08: 0000000000000005 R09: 0000000000000000 > R10: 0000000000400000 R11: ffffffff8aa0008b R12: ffffffffffffffed > R13: ffff88802560682c R14: ffffc900039cfac4 R15: ffff888025606800 > FS: 00005555567bb380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00000000200001c2 CR3: 00000000793d5000 CR4: 00000000003506f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > > ip6_route_add+0x26/0x1f0 net/ipv6/route.c:3843 > ipv6_route_ioctl+0x3ff/0x590 net/ipv6/route.c:4467 > inet6_ioctl+0x265/0x2b0 net/ipv6/af_inet6.c:575 > sock_do_ioctl+0x113/0x270 net/socket.c:1220 > sock_ioctl+0x22e/0x6b0 net/socket.c:1339 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:871 [inline] > __se_sys_ioctl fs/ioctl.c:857 [inline] > __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857 > do_syscall_x64 arch/x86/entry/common.c:51 [inline] > do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 > entry_SYSCALL_64_after_hwframe+0x63/0x6b > RIP: 0033:0x7f73fa33f369 > Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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:00007ffce78f30b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007ffce78f3288 RCX: 00007f73fa33f369 > RDX: 00000000200001c0 RSI: 000000000000890b RDI: 0000000000000003 > RBP: 00007f73fa3b2610 R08: 0000000000000000 R09: 00007ffce78f3288 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 > R13: 00007ffce78f3278 R14: 0000000000000001 R15: 0000000000000001 > > > > --- > 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. > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > > If the report is already addressed, let syzbot know by replying with: > #syz fix: exact-commit-title > > If you want syzbot to run the reproducer, reply with: > #syz test: git://repo/address.git branch-or-commit-hash > If you attach or paste a git patch, syzbot will apply it before testing. > > If you want to overwrite report's subsystems, reply with: > #syz set subsystems: new-subsystem > (See the list of subsystem names on the web dashboard) > > If the report is a duplicate of another one, reply with: > #syz dup: exact-subject-of-another-report > > If you want to undo deduplication, reply with: > #syz undup >