USB: chaoskey read offset bug · 1d5c47f555 - Gogs: Go Git Service GfA electronic

USB: chaoskey read offset bug

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

Signed-off-by: Alexander Inyukhin <shurick@sectorb.msk.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Alexander Inyukhin 10 years ago

parent

8484bf2981

commit

1d5c47f555

1 changed files with 1 additions and 1 deletions

Split View Show Diff Stats

						
							+ 1
							
							- 1
						
drivers/usb/misc/chaoskey.c
							 
								View File
							
				@@ -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;