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authorSoenke Huster <soenke.huster@eknoes.de>2022-10-12 09:45:06 +0200
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-11-02 22:15:42 +0100
commit160fbcf3bfb93c3c086427f9f4c8bc70f217e9be (patch)
tree4c7f8948f9428e5bdc63acfaf5b3d0acf5b232e9 /drivers/bluetooth
parentBluetooth: hci_conn: Fix CIS connection dst_type handling (diff)
downloadlinux-160fbcf3bfb93c3c086427f9f4c8bc70f217e9be.tar.xz
linux-160fbcf3bfb93c3c086427f9f4c8bc70f217e9be.zip
Bluetooth: virtio_bt: Use skb_put to set length
By using skb_put we ensure that skb->tail is set correctly. Currently, skb->tail is always zero, which leads to errors, such as the following page fault in rfcomm_recv_frame: BUG: unable to handle page fault for address: ffffed1021de29ff #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page RIP: 0010:rfcomm_run+0x831/0x4040 (net/bluetooth/rfcomm/core.c:1751) Fixes: afd2daa26c7a ("Bluetooth: Add support for virtio transport driver") Signed-off-by: Soenke Huster <soenke.huster@eknoes.de> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/virtio_bt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/virtio_bt.c b/drivers/bluetooth/virtio_bt.c
index 67c21263f9e0..fd281d439505 100644
--- a/drivers/bluetooth/virtio_bt.c
+++ b/drivers/bluetooth/virtio_bt.c
@@ -219,7 +219,7 @@ static void virtbt_rx_work(struct work_struct *work)
if (!skb)
return;
- skb->len = len;
+ skb_put(skb, len);
virtbt_rx_handle(vbt, skb);
if (virtbt_add_inbuf(vbt) < 0)