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USB: CDC ACM: Fix NULL pointer dereference
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
drivers
/
usb
/
class
/
cdc-acm.c
diff --git
a/drivers/usb/class/cdc-acm.c
b/drivers/usb/class/cdc-acm.c
index
56d6bf6
..
f763ed7
100644
(file)
--- a/
drivers/usb/class/cdc-acm.c
+++ b/
drivers/usb/class/cdc-acm.c
@@
-1104,7
+1104,8
@@
skip_normal_probe:
}
}
- if (data_interface->cur_altsetting->desc.bNumEndpoints < 2)
+ if (data_interface->cur_altsetting->desc.bNumEndpoints < 2 ||
+ control_interface->cur_altsetting->desc.bNumEndpoints == 0)
return -EINVAL;
epctrl = &control_interface->cur_altsetting->endpoint[0].desc;
return -EINVAL;
epctrl = &control_interface->cur_altsetting->endpoint[0].desc;