From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+c12e2f941af1feb5632c@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_connect (2)
Date: Sun, 8 Sep 2024 20:50:17 +0800 [thread overview]
Message-ID: <20240908125017.2529-1-hdanton@sina.com> (raw)
In-Reply-To: <0000000000004a130a0621888811@google.com>
On Sat, 07 Sep 2024 07:42:26 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 788220eee30d Merge tag 'pm-6.11-rc7' of git://git.kernel.o..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1304189f980000
#syz test
--- x/net/bluetooth/hci_core.c
+++ y/net/bluetooth/hci_core.c
@@ -3787,8 +3787,10 @@ static void hci_acldata_packet(struct hc
if (conn) {
hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);
+ hci_req_sync_lock(hdev);
/* Send to upper protocol */
l2cap_recv_acldata(conn, skb, flags);
+ hci_req_sync_unlock(hdev);
return;
} else {
bt_dev_err(hdev, "ACL packet for unknown connection handle %d",
--
next prev parent reply other threads:[~2024-09-08 12:50 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-24 20:23 [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_connect (2) syzbot
2024-09-07 14:42 ` syzbot
2024-09-08 0:01 ` Hillf Danton
2024-09-08 0:24 ` syzbot
2024-09-08 1:28 ` Edward Adam Davis
2024-09-08 1:51 ` syzbot
2024-09-08 2:06 ` Edward Adam Davis
2024-09-08 2:29 ` syzbot
2024-09-08 2:41 ` Edward Adam Davis
2024-09-08 3:06 ` syzbot
2024-09-08 3:15 ` Edward Adam Davis
2024-09-08 3:58 ` syzbot
2024-09-08 3:25 ` Hillf Danton
2024-09-08 4:07 ` syzbot
2024-09-08 4:07 ` Edward Adam Davis
2024-09-08 4:37 ` syzbot
2024-09-08 7:22 ` [PATCH] Bluetooth/l2cap: Fix uaf in l2cap_connect Edward Adam Davis
2024-09-10 20:56 ` Luiz Augusto von Dentz
2024-09-20 15:07 ` Luiz Augusto von Dentz
2024-09-21 1:40 ` Edward Adam Davis
2024-09-21 10:56 ` Hillf Danton
2024-09-23 14:32 ` Luiz Augusto von Dentz
2024-09-23 14:37 ` Aleksandr Nogikh
2024-09-23 15:20 ` Luiz Augusto von Dentz
2024-09-23 15:28 ` [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_connect (2) syzbot
2024-09-23 15:38 ` [PATCH] Bluetooth/l2cap: Fix uaf in l2cap_connect Aleksandr Nogikh
2024-09-23 15:48 ` Luiz Augusto von Dentz
2024-09-23 16:21 ` [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_connect (2) syzbot
2024-09-08 8:32 ` Hillf Danton
2024-09-08 8:52 ` syzbot
2024-09-08 11:15 ` Hillf Danton
2024-09-08 11:33 ` syzbot
2024-09-08 12:50 ` Hillf Danton [this message]
2024-09-08 13:10 ` syzbot
2024-09-08 13:37 ` Hillf Danton
2024-09-08 13:58 ` syzbot
2024-09-09 11:06 ` Hillf Danton
2024-09-09 11:31 ` syzbot
2024-09-11 11:29 ` Hillf Danton
2024-09-11 11:59 ` syzbot
2024-09-12 11:49 ` Hillf Danton
2024-09-12 14:51 ` syzbot
2024-09-10 18:43 ` syzbot
2024-09-23 16:13 ` [syzbot] Re: [PATCH] Bluetooth/l2cap: Fix uaf in l2cap_connect syzbot
[not found] <CABBYNZ+Fj1bDqSG7PkF5OFEx_OWkgm2gEm8640odaQX5EBGxPg@mail.gmail.com>
2024-09-23 16:45 ` [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_connect (2) syzbot
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