From: Qianqiang Liu <qianqiang.liu@163.com>
To: syzbot <syzbot+03d6270b6425df1605bf@syzkaller.appspotmail.com>
Cc: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org,
linux-kernel@vger.kernel.org, luiz.dentz@gmail.com,
marcel@holtmann.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in set_powered_sync
Date: Thu, 3 Oct 2024 23:41:25 +0800 [thread overview]
Message-ID: <Zv67JUPfzgQp7Kgf@fedora> (raw)
In-Reply-To: <66feadf0.050a0220.9ec68.0042.GAE@google.com>
#syz test
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 5533e6f561b3..353fa423c36c 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -321,7 +321,7 @@ static void hci_cmd_sync_work(struct work_struct *work)
bt_dev_dbg(hdev, "entry %p", entry);
- if (entry->func) {
+ if (entry->func && entry->data) {
int err;
hci_req_sync_lock(hdev);
diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index 0115f783bde8..eccc51bfaf2e 100644
--- a/net/bluetooth/mgmt_util.c
+++ b/net/bluetooth/mgmt_util.c
@@ -307,6 +307,7 @@ void mgmt_pending_free(struct mgmt_pending_cmd *cmd)
sock_put(cmd->sk);
kfree(cmd->param);
kfree(cmd);
+ cmd = NULL;
}
void mgmt_pending_remove(struct mgmt_pending_cmd *cmd)
--
Best,
Qianqiang Liu
next prev parent reply other threads:[~2024-10-03 15:41 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-15 9:36 [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in set_powered_sync syzbot
2024-09-08 9:07 ` syzbot
2024-11-16 0:56 ` Hillf Danton
2024-11-16 1:23 ` syzbot
2024-11-16 3:00 ` Hillf Danton
2024-11-16 3:28 ` syzbot
2024-09-08 16:43 ` syzbot
2024-10-03 14:28 ` Qianqiang Liu
2024-10-03 14:45 ` syzbot
2024-10-03 15:41 ` Qianqiang Liu [this message]
2024-10-03 16:22 ` syzbot
2024-10-03 16:45 ` Qianqiang Liu
2024-10-03 16:54 ` Luiz Augusto von Dentz
2024-10-03 17:15 ` Qianqiang Liu
2024-10-04 20:50 ` Luiz Augusto von Dentz
2024-10-04 20:54 ` syzbot
2024-10-03 17:13 ` syzbot
2024-10-04 13:56 ` [syzbot] " syzbot
2024-11-15 16:42 ` [syzbot] Re: [PATCH v1] Bluetooth: MGMT: Fix " syzbot
2024-11-15 18:41 ` syzbot
2024-11-18 16:04 ` [syzbot] Re: [PATCH v3] " syzbot
2024-11-18 17:00 ` syzbot
2024-11-18 20:50 ` [syzbot] Re: [PATCH v5] " syzbot
[not found] <20241004135647.691343-1-dmantipov@yandex.ru>
2024-10-04 15:02 ` [syzbot] [bluetooth?] KASAN: " syzbot
[not found] <CABBYNZLatZOTP3B68PPdm0E7y-t4qAzCDmaB8vxKZu-o3ncmgQ@mail.gmail.com>
2024-11-15 23:32 ` syzbot
[not found] <CABBYNZJU6ctSeqC5f+EPqo6UJoVKwtjc_EWZa=-CEJNAi28Upw@mail.gmail.com>
2024-11-15 23:57 ` syzbot
[not found] <CABBYNZ+jcHzVhzLXeU9GYJuFO-PgT=vfYq1+RrGkgyRA9AeU1A@mail.gmail.com>
2024-11-18 16:31 ` syzbot
[not found] <CABBYNZKUmL=xekhLMfF9vza3agxtAX5qh1NTJVuRD9R9hwHmQg@mail.gmail.com>
2024-11-18 17:26 ` syzbot
[not found] <CABBYNZ+=qNj8=Osdzxx2n0Yt0H0AjKtOAx__QkZw_Gk3a1ygbw@mail.gmail.com>
2024-11-18 21:16 ` syzbot
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