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USB: serial: safe_serial: fix information leak in completion handler

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am: 3cdc946387

Change-Id: I2a29b5d7a753bd94d320bda52427bd62ab042787
This commit is contained in:
Johan Hovold 2017-03-18 11:23:18 +00:00 • committed by android-build-merger
commit a94cfa2ac4
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/serial/safe_serial.c
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@ -205,6 +205,11 @@ static void safe_process_read_urb(struct urb *urb)
if (!safe) if (!safe)
goto out; goto out;
if (length < 2) {
dev_err(&port->dev, "malformed packet\n");
return;
}
fcs = fcs_compute10(data, length, CRC10_INITFCS); fcs = fcs_compute10(data, length, CRC10_INITFCS);
if (fcs) { if (fcs) {
dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs); dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs);