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| author | Haoxiang Li <haoxiang_li2024@163.com> | 2025-02-21 16:58:01 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-13 12:58:26 +0100 |
| commit | bdb1805c248e9694dbb3ffa8867cef2e52cf7261 (patch) | |
| tree | 85c9308f239dda564dcc2f228d64b62496643a00 | |
| parent | c5845c73cbacf5704169283ef29ca02031a36564 (diff) | |
| download | linux-bdb1805c248e9694dbb3ffa8867cef2e52cf7261.tar.gz linux-bdb1805c248e9694dbb3ffa8867cef2e52cf7261.tar.bz2 linux-bdb1805c248e9694dbb3ffa8867cef2e52cf7261.zip | |
Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected()
commit d8df010f72b8a32aaea393e36121738bb53ed905 upstream.
Add check for the return value of mgmt_alloc_skb() in
mgmt_device_connected() to prevent null pointer dereference.
Fixes: e96741437ef0 ("Bluetooth: mgmt: Make use of mgmt_send_event_skb in MGMT_EV_DEVICE_CONNECTED")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/bluetooth/mgmt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 46ed7945cc2f..29e420e9754b 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -9679,6 +9679,9 @@ void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0) + eir_precalc_len(sizeof(conn->dev_class))); + if (!skb) + return; + ev = skb_put(skb, sizeof(*ev)); bacpy(&ev->addr.bdaddr, &conn->dst); ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type); |