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 7A603C433EF for ; Sun, 17 Jul 2022 18:21:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232307AbiGQSVk (ORCPT ); Sun, 17 Jul 2022 14:21:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229544AbiGQSVh (ORCPT ); Sun, 17 Jul 2022 14:21:37 -0400 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6F4E13F16 for ; Sun, 17 Jul 2022 11:21:36 -0700 (PDT) Received: by mail-io1-f70.google.com with SMTP id i3-20020a5d8403000000b0067bd73cc9eeso4236954ion.19 for ; Sun, 17 Jul 2022 11:21:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=9lxHvDLp1NNRIHjnSmqb8mKhlE83vGlSB7ASV9SnxPQ=; b=k1E0sxsviG8XThke/LDkEegmK2A+7jFZ70MPG169fKh39eyIlUqlmrvFyvoh1jAk+J K6bL/YjAtgJl/P/nMylJ+3oTwSyuV8J7Hrsv+FGHIZHE+owVNpOYo+VWnWwufzIqX4kP DMocQW+CGEGktlQKNL8fe+PRIoai3hYmcmvmEW2XlNSu2TfviVl/52sOqZO8FlFEg+U1 Yg437xuqbaq9za+lMam1L/NcZgSWOY497DHDpq99NOQtrecvlWiAGUHr57vDQs2NkeBw +NDcjfq7uns3hjkN4pPHSngx8PNHPpEpZudWkvvGjUbPQko5yjIkk4KEnzHKwDWySbIM aZOg== X-Gm-Message-State: AJIora9HFjcK/+exZa0D3OD4cuQoc+OdbrqDCoklD7+xVsdfjpIZvFt/ M3AyeYGoePyttyK5w8O3NsD1fODLJd/65PhKcnRav3QrVtBO X-Google-Smtp-Source: AGRyM1vdVhYapUGsZAz1GVQJQ8c+96LBjKEne+s2jtf8dpKMcy6OY5t4/UHfUpIImFfbQJwM1Eo6ePRGRJtYlRjh31O4dRBJbGVY MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1885:b0:2dc:5ede:8537 with SMTP id o5-20020a056e02188500b002dc5ede8537mr11832936ilu.275.1658082096077; Sun, 17 Jul 2022 11:21:36 -0700 (PDT) Date: Sun, 17 Jul 2022 11:21:36 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000058626005e40452e6@google.com> Subject: [syzbot] memory leak in ipv6_renew_options From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org 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: b047602d579b Merge tag 'trace-v5.19-rc5' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1129c37c080000 kernel config: https://syzkaller.appspot.com/x/.config?x=689b5fe7168a1260 dashboard link: https://syzkaller.appspot.com/bug?extid=a8430774139ec3ab7176 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1349421c080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=120fcc1c080000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a8430774139ec3ab7176@syzkaller.appspotmail.com executing program executing program BUG: memory leak unreferenced object 0xffff88810b810f00 (size 96): comm "syz-executor113", pid 3606, jiffies 4294944081 (age 12.460s) hex dump (first 32 bytes): 01 00 00 00 48 00 00 00 00 00 08 00 00 00 00 00 ....H........... 00 00 00 00 00 00 00 00 40 0f 81 0b 81 88 ff ff ........@....... backtrace: [] kmalloc include/linux/slab.h:605 [inline] [] sock_kmalloc net/core/sock.c:2563 [inline] [] sock_kmalloc+0x61/0x90 net/core/sock.c:2554 [] ipv6_renew_options+0x120/0x440 net/ipv6/exthdrs.c:1318 [] ipv6_set_opt_hdr net/ipv6/ipv6_sockglue.c:354 [inline] [] do_ipv6_setsockopt.constprop.0+0x49d/0x24d0 net/ipv6/ipv6_sockglue.c:668 [] ipv6_setsockopt+0xbe/0x120 net/ipv6/ipv6_sockglue.c:1021 [] __sys_setsockopt+0x1b0/0x390 net/socket.c:2254 [] __do_sys_setsockopt net/socket.c:2265 [inline] [] __se_sys_setsockopt net/socket.c:2262 [inline] [] __x64_sys_setsockopt+0x22/0x30 net/socket.c:2262 [] 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 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches