diff options
| author | Johan Hovold <johan@kernel.org> | 2020-09-21 15:59:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-25 17:01:12 +0200 |
| commit | e3be44cd43f312324d4eb5cdbfea184628c333fc (patch) | |
| tree | 2470f822abf5b4beb8c97cf250f0b415eab036b9 /drivers/usb/class/cdc-acm.c | |
| parent | dbb29de70ae73a5737506d6cfe802bee81557ae7 (diff) | |
| download | linux-e3be44cd43f312324d4eb5cdbfea184628c333fc.tar.gz | |
Revert "cdc-acm: hardening against malicious devices"
This reverts commit 2ad9d544f2497a7bf239c34bd2b86fd19683dbb5.
Drop bogus sanity check; an interface in the active configuration will
always have a current altsetting assigned by USB core.
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200921135951.24045-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index f3803fa7c00775..3b87e978d9723c 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1197,9 +1197,6 @@ static int acm_probe(struct usb_interface *intf, return -EINVAL; } - if (!intf->cur_altsetting) - return -EINVAL; - if (!buflen) { if (intf->cur_altsetting->endpoint && intf->cur_altsetting->endpoint->extralen && @@ -1253,8 +1250,6 @@ static int acm_probe(struct usb_interface *intf, dev_dbg(&intf->dev, "no interfaces\n"); return -ENODEV; } - if (!data_interface->cur_altsetting || !control_interface->cur_altsetting) - return -ENODEV; if (data_intf_num != call_intf_num) dev_dbg(&intf->dev, "Separate call control interface. That is not fully supported.\n"); |