From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+5c915dc5dd417b83b348@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_recv_frame
Date: Sun, 1 Sep 2024 17:04:00 +0800 [thread overview]
Message-ID: <20240901090400.1493-1-hdanton@sina.com> (raw)
In-Reply-To: <00000000000096680f062109ec63@google.com>
On Sun, 01 Sep 2024 00:39:27 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: e8784b0aef62 Merge tag 'usb-6.11-rc6' of git://git.kernel...
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10dfdadb980000
#syz test upstream e8784b0aef62
--- i/net/bluetooth/l2cap_core.c
+++ l/net/bluetooth/l2cap_core.c
@@ -1797,6 +1797,7 @@ static void l2cap_conn_del(struct hci_co
if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT)
cancel_delayed_work_sync(&conn->info_timer);
+ cancel_work_sync(&hcon->hdev->rx_work);
hcon->l2cap_data = NULL;
conn->hchan = NULL;
l2cap_conn_put(conn);
--
next prev parent reply other threads:[~2024-09-01 9:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-27 7:44 syzbot
2024-09-01 7:39 ` syzbot
2024-09-01 9:04 ` Hillf Danton [this message]
2024-09-01 10:13 ` syzbot
2024-09-01 11:13 ` Hillf Danton
2024-09-01 12:33 ` syzbot
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