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 diktynna.open-mesh.org (diktynna.open-mesh.org [136.243.236.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 876A8D0D170 for ; Wed, 7 Jan 2026 21:33:05 +0000 (UTC) Received: from diktynna.open-mesh.org (localhost [IPv6:::1]) by diktynna.open-mesh.org (Postfix) with ESMTP id BCFBA85966 for ; Wed, 07 Jan 2026 22:33:03 +0100 (CET) ARC-Seal: i=2; cv=pass; a=rsa-sha256; d=open-mesh.org; s=20121; t=1767821583; b=QrvzW8PIMEy3XY1stLfz/ajOv7uGmtRlrLyqheoQbHflBV6ziwO2MWAo08wEKfk5QlRld rwHBzs0aUUyKVet9kl7C3h5jTZrJ/m7sQUrVbdDlmhCNLXJ5+n1a0Mp+KRhKbiNItVg+ldA aK2UYCUSqXIIJPrSv9VC0KZXDgHVa8M= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1767821583; h=from : sender : reply-to : subject : date : message-id : to : cc : mime-version : content-type : content-transfer-encoding : content-id : content-description : resent-date : resent-from : resent-sender : resent-to : resent-cc : resent-message-id : in-reply-to : references : list-id : list-help : list-unsubscribe : list-subscribe : list-post : list-owner : list-archive; bh=YXJ9WC2NmU9YEErBDW4d1c4BSngY0akKh966eavx5Fk=; b=G9XVzO6mMrWoPH6TJBpdXh8BIwxHglnCnyP+glEfDdfAugn6p6k3JP4qvtJ5Fba2szLTF nNtk4kc1cGF6rzCEnpO/ecCT5u5y9ZYkTSuzY0V7sjj7exIV3n2j2yejnXV2EEUDwCju14c gTb3NWzoa6yCGfjxtshvn8PIuPH0mQc= ARC-Authentication-Results: i=2; open-mesh.org; dkim=fail; arc=pass; dmarc=fail header.from=syzkaller.appspotmail.com policy.dmarc=none Authentication-Results: open-mesh.org; dkim=fail; arc=pass; dmarc=fail (Used Org Domain Record) header.from=syzkaller.appspotmail.com policy.dmarc=none Received: from mail-ot1-f77.google.com (mail-ot1-f77.google.com [209.85.210.77]) by diktynna.open-mesh.org (Postfix) with ESMTPS id 9E5EB843CC for ; Wed, 07 Jan 2026 18:34:29 +0100 (CET) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1767807269; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=YXJ9WC2NmU9YEErBDW4d1c4BSngY0akKh966eavx5Fk=; b=FO2XfPa7r+05b5DLEbxm8eQ05P/yH81OLr53/VxgLHFKeaQbO2Z1VoT21F5RIfuNuZC1TA KC3eM7CDhs7k5kOPdm+OAExkUGv/BrLnaEqr7yfQZus08+5nAiIeAEPHw7Qkls/lX8cb/t j6kkturex8OUsB+DaHdQL3pReoUyCbU= ARC-Authentication-Results: i=1; diktynna.open-mesh.org; dkim=none; spf=pass (diktynna.open-mesh.org: domain of 3I5leaQkbACIQWXI8JJCP8NNGB.EMMEJCSQCPAMLRCLR.AMK@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.210.77 as permitted sender) smtp.mailfrom=3I5leaQkbACIQWXI8JJCP8NNGB.EMMEJCSQCPAMLRCLR.AMK@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none) ARC-Seal: i=1; a=rsa-sha256; d=open-mesh.org; s=20121; cv=none; t=1767807269; b=rCD8O1ZP3gAzl9nXb+ai4K4LmzPJZ2WS+AVBPwATEi3RJUcwBRJH53yb/ss3asn0S+0ppD tMxyqxyDRg/lAVaL8WZQwgc0TjeCl/Q6zrqfQ385RsamqWQ+hHM6wZU7GGPhkg5/SJk8aF JFexL8hUFYguAedaa0gdvVpyvOa7s9w= Received: by mail-ot1-f77.google.com with SMTP id 46e09a7af769-7ce031c61ccso2121892a34.0 for ; Wed, 07 Jan 2026 09:34:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767807268; x=1768412068; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=YXJ9WC2NmU9YEErBDW4d1c4BSngY0akKh966eavx5Fk=; b=j63RB9Z0EEylNgqPq5pWKkv0+YcEqUAsdsu/Oc0MCiCiKmkz66IN5QCDQq3Sz4IS3w tD8D8GafjorheFo4eM62XV2nvaOF2Gvm+yCzz6d7lxDzX3zdJyp8BIJBkvwPlRuzu7qP 8ZyESt19GreIiOXIM0v+Rkcugp2V0IJ6gsvfC8TKpEz10BCL9ORkvRzmITj79BgthanY fe7A//1/RZoxl5fmlt8VZtwMMo6GFjVcyl95YSGHHTx7DcjplHvOwMe+uhict2E5WDhE EblqAJ+A3AvXjIlFgJdE/eR3ECHj63NF7Lp2wjgm+yKu0VbkD4H4lxEQYfXIctZDc2ua P0Kw== X-Forwarded-Encrypted: i=1; AJvYcCWMhzHyhpzo1LyTDlFBJP4ybvruvpi7hWsG9NC28g6BPFhssi0vs25/LAlJWtfhVRbkB91XXGHWXzlckg==@lists.open-mesh.org X-Gm-Message-State: AOJu0YyVcFgcJXzYMs8xLOLyBQpsncdk4f/G182uBFNWHR4DJNC01jqA yG9u356klq9K0g6NVuQ5NusRY4m8w6oJVdxFR0xsEYUUFivS36dm+HIYuoVn6fRVU0EMLJKXnv+ SjHusE1lLAmHoPiPdYsPjgXp3nGYdcCCXVVUj8WYzIsPyfT7Txv8KaTU5ucY= X-Google-Smtp-Source: AGHT+IH4AnecHwe1eU+seiZT8AASstncmzFKC7GVs7sp+BqLT+rUYXqD/TFtAndib/yxC1B/VhUmEO2OoS2WpKMEmKAy6Syz4FVi MIME-Version: 1.0 X-Received: by 2002:a4a:e645:0:b0:65b:299f:8947 with SMTP id 006d021491bc7-65f481e96e9mr3009818eaf.14.1767807267978; Wed, 07 Jan 2026 09:34:27 -0800 (PST) Date: Wed, 07 Jan 2026 09:34:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <695e9923.050a0220.1c677c.0370.GAE@google.com> Subject: [syzbot] [batman?] [bluetooth?] memory leak in skb_clone (3) From: syzbot To: antonio@mandelbit.com, b.a.t.m.a.n@lists.open-mesh.org, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, marek.lindner@mailbox.org, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-MailFrom: 3I5leaQkbACIQWXI8JJCP8NNGB.EMMEJCSQCPAMLRCLR.AMK@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; header-match-b.a.t.m.a.n.lists.open-mesh.org-2; header-match-b.a.t.m.a.n.lists.open-mesh.org-3; emergency; member-moderation Message-ID-Hash: 5V3H5CN42XY7DF75OULQM2PEOG2WHPSF X-Message-ID-Hash: 5V3H5CN42XY7DF75OULQM2PEOG2WHPSF X-Mailman-Approved-At: Wed, 07 Jan 2026 22:32:41 +0100 X-Mailman-Version: 3.3.10 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: <> List-Archive: <> List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 4a26e7032d7d Merge tag 'core-bugs-2025-12-01' of git://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=116a9512580000 kernel config: https://syzkaller.appspot.com/x/.config?x=cbf343972ee89096 dashboard link: https://syzkaller.appspot.com/bug?extid=6e76aa21aaf2d8be6034 compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=179be192580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15cd92b4580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3f4ff8b7d65f/disk-4a26e703.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2fbb585ef1ac/vmlinux-4a26e703.xz kernel image: https://storage.googleapis.com/syzbot-assets/dfdc58db78d3/bzImage-4a26e703.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6e76aa21aaf2d8be6034@syzkaller.appspotmail.com 2025/12/03 00:25:54 executed programs: 5 BUG: memory leak unreferenced object 0xffff88811a1e1100 (size 240): comm "kworker/u9:0", pid 51, jiffies 4294944590 hex dump (first 32 bytes): 90 50 50 42 81 88 ff ff 90 50 50 42 81 88 ff ff .PPB.....PPB.... 00 00 00 00 00 00 00 00 00 50 50 42 81 88 ff ff .........PPB.... backtrace (crc eed28d2d): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4983 [inline] slab_alloc_node mm/slub.c:5288 [inline] kmem_cache_alloc_noprof+0x397/0x5a0 mm/slub.c:5295 skb_clone+0xae/0x2b0 net/core/skbuff.c:2050 __skb_tstamp_tx+0x3a0/0x4c0 net/core/skbuff.c:5636 hci_conn_tx_queue+0x11c/0x1d0 net/bluetooth/hci_conn.c:3026 hci_send_conn_frame net/bluetooth/hci_core.c:3086 [inline] hci_sched_acl_pkt net/bluetooth/hci_core.c:3701 [inline] hci_sched_acl net/bluetooth/hci_core.c:3726 [inline] hci_tx_work+0x437/0x570 net/bluetooth/hci_core.c:3820 process_one_work+0x26b/0x620 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x2c4/0x4f0 kernel/workqueue.c:3427 kthread+0x15b/0x310 kernel/kthread.c:463 ret_from_fork+0x2af/0x2e0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF --- 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. 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