Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 001/138] usb: gadget: avoid exposing kernel stack | Date | Thu, 18 Aug 2016 15:56:51 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Heinrich Schuchardt <xypron.glpk@gmx.de>
commit ffeee83aa0461992e8a99a59db2df31933e60362 upstream.
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> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/usb/gadget/function/f_uac2.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1291,6 +1291,7 @@ in_rq_cur(struct usb_function *fn, const 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;
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