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cdc-acm: fix uninitialized variable
variable struct usb_cdc_parsed_header h may be used uninitialized in acm_probe. In kernel 4.8. /* handle quirks deadly to normal probing*/ if (quirks == NO_UNION_NORMAL) ... goto skip_normal_probe; } we bypass call to cdc_parse_cdc_header(&h, intf, buffer, buflen); but later use h in if (h.usb_cdc_country_functional_desc) { /* export the country data */ Signed-off-by: Oliver Neukum <oneukum@suse.com> CC: stable@vger.kernel.org Reported-by: Victor Sologoubov <victor0@rambler.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1161,6 +1161,8 @@ static int acm_probe(struct usb_interface *intf,
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if (quirks == IGNORE_DEVICE)
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return -ENODEV;
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memset(&h, 0x00, sizeof(struct usb_cdc_parsed_header));
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num_rx_buf = (quirks == SINGLE_RX_URB) ? 1 : ACM_NR;
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/* handle quirks deadly to normal probing*/
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