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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 21FD1C47096 for ; Sun, 6 Jun 2021 14:32:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F3D286142A for ; Sun, 6 Jun 2021 14:32:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230127AbhFFOeb (ORCPT ); Sun, 6 Jun 2021 10:34:31 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:50777 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230084AbhFFOea (ORCPT ); Sun, 6 Jun 2021 10:34:30 -0400 Received: by mail-io1-f71.google.com with SMTP id x4-20020a5eda040000b02904a91aa10037so8430780ioj.17 for ; Sun, 06 Jun 2021 07:32:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=uqSTnJmF6jkd8M7kvxPaJdh5Qa8x9pELicXxPo/lEo0=; b=JCEj2Dzj3gZbqbe3dYnwauXlgsHrYb3oPzBt5c62Fz7YS7WtLibTM3KeC8PwTK7xGE 8e+ljm8ovQyHJDqIo7VIUVjBS/gJkl8MVSXMKsx5ZkouAZQjAS/S90UXgXPc0DrVmMgr nSddZ0Z8OgyXaU9qRsITHfiFP6XpxbmJ24RiCWIb8wfV7ru5g4EStnsxIaS2/Pxy3LYR 46n5z3xeA/qD2MiOf/cxMf2Q6sQ0SKwoPMAbfpRULWezV5uN2wjhV5IiAIMTvMiKNo0N qk5S3W4Qqpu73NkbyhuVG5+wjxzxRlXvr5rXXqO8dPmM0a6G5yA0Wan7/HoUEYSbLk9w KAIw== X-Gm-Message-State: AOAM533ft61BN3HQWe7H/68A/vcbiHuKjtzi616kpv+lrRva8TygW45d E6ic3KVaPU8P7M7e49uRRIQHufLHKB1PPBbCDqdIf5ITmrkv X-Google-Smtp-Source: ABdhPJx4T0AraLHIkc5THAXNkdb6wcIykgSSIXYevqIncn6XVl13S9tK73/JcwXuOxbSLvFNeCqYGcYPqRDzI9P7TyzO/UdiD+Se MIME-Version: 1.0 X-Received: by 2002:a05:6e02:88f:: with SMTP id z15mr11096749ils.61.1622989943899; Sun, 06 Jun 2021 07:32:23 -0700 (PDT) Date: Sun, 06 Jun 2021 07:32:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000148b4b05c419cbbb@google.com> Subject: [syzbot] memory leak in __send_signal From: syzbot To: axboe@kernel.dk, christian@brauner.io, ebiederm@xmission.com, elver@google.com, linux-kernel@vger.kernel.org, oleg@redhat.com, pcc@google.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de 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: 9d32fa5d Merge tag 'net-5.13-rc5' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10fd97dfd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=de8efb0998945e75 dashboard link: https://syzkaller.appspot.com/bug?extid=0bac5fec63d4f399ba98 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16029ce0300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0bac5fec63d4f399ba98@syzkaller.appspotmail.com 2021/06/05 21:42:36 executed programs: 303 2021/06/05 21:42:42 executed programs: 312 2021/06/05 21:42:48 executed programs: 319 2021/06/05 21:42:54 executed programs: 331 BUG: memory leak unreferenced object 0xffff8881278e3c80 (size 80): comm "syz-executor.4", pid 12851, jiffies 4295068441 (age 14.610s) hex dump (first 32 bytes): 80 3c 8e 27 81 88 ff ff 80 3c 8e 27 81 88 ff ff .<.'.....<.'.... 00 00 00 00 00 00 00 00 05 00 00 00 00 00 00 00 ................ backtrace: [] __sigqueue_alloc+0xd6/0x240 kernel/signal.c:441 [] __send_signal+0x231/0x600 kernel/signal.c:1155 [] do_send_sig_info+0x63/0xc0 kernel/signal.c:1333 [] do_send_specific+0xc9/0xf0 kernel/signal.c:3881 [] do_tkill+0x8b/0xb0 kernel/signal.c:3907 [] __do_sys_tkill kernel/signal.c:3942 [inline] [] __se_sys_tkill kernel/signal.c:3936 [inline] [] __x64_sys_tkill+0x31/0x50 kernel/signal.c:3936 [] do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 [] entry_SYSCALL_64_after_hwframe+0x44/0xae --- 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