diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2016-05-08 23:20:59 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-05-31 10:24:30 +0200 |
| commit | ffeee83aa0461992e8a99a59db2df31933e60362 (patch) | |
| tree | cb183e66b9891adc3bc17c473d204affdda13956 | |
| parent | usb: dwc2: fix regression on big-endian PowerPC/ARM systems (diff) | |
| download | linux-ffeee83aa0461992e8a99a59db2df31933e60362.tar.xz linux-ffeee83aa0461992e8a99a59db2df31933e60362.zip | |
usb: gadget: avoid exposing kernel stack
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>
| -rw-r--r-- | drivers/usb/gadget/function/f_uac2.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index 1c81dd3b0cd4..cd214ec8a601 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1280,6 +1280,7 @@ 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; |