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Commit 1d5c47f5 authored by Alexander Inyukhin's avatar Alexander Inyukhin Committed by Greg Kroah-Hartman
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USB: chaoskey read offset bug 



Rng reads in chaoskey driver could return the same data under
the certain conditions.

Signed-off-by: default avatarAlexander Inyukhin <shurick@sectorb.msk.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8484bf29

drivers/usb/misc/chaoskey.c

+1 −1
Original line number Diff line number Diff line
@@ -472,7 +472,7 @@ static int chaoskey_rng_read(struct hwrng *rng, void *data, 
	if (this_time > max)

		this_time = max;



	memcpy(data, dev->buf, this_time);

	memcpy(data, dev->buf + dev->used, this_time);



	dev->used += this_time;