Messages in this thread Patch in this message | | | From | Heinrich Schuchardt <> | Subject | [PATCH 1/1] usb: gadget: avoid exposing kernel stack | Date | Sun, 8 May 2016 23:20:59 +0200 |
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Function in_rq_cur copies random bytes from the stack. Zero the memory instead.
Fixes: 132fcb460839 ("usb: gadget: Add Audio Class 2.0 Driver") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> --- drivers/usb/gadget/function/f_uac2.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index 186d4b1..23cba7b 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1292,6 +1292,7 @@ in_rq_cur(struct usb_function *fn, const struct usb_ctrlrequest *cr) if (control_selector == UAC2_CS_CONTROL_SAM_FREQ) { struct cntrl_cur_lay3 c; + memset(&c, 0, sizeof(struct cntrl_cur_lay3)); if (entity_id == USB_IN_CLK_ID) c.dCUR = p_srate; -- 2.1.4
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