USB: gadget: Read buffer overflow
Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>hifive-unleashed-5.1
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d0defb855c
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417b57b3e4
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@ -602,7 +602,7 @@ static int get_string(struct usb_composite_dev *cdev,
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}
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}
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}
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}
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for (len = 0; s->wData[len] && len <= 126; len++)
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for (len = 0; len <= 126 && s->wData[len]; len++)
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continue;
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continue;
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if (!len)
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if (!len)
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return -EINVAL;
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return -EINVAL;
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