The driver put a constant buffer of all zeros on the stack and pointed a scatterlist entry at it. This doesn't work with virtual stacks. Make the buffer static to fix it. Cc: stable@xxxxxxxxxxxxxxx # 4.9 only Reported-by: Eric Biggers <ebiggers3@xxxxxxxxx> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> --- drivers/usb/wusbcore/crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c index 79451f7ef1b7..a7e007a0cd49 100644 --- a/drivers/usb/wusbcore/crypto.c +++ b/drivers/usb/wusbcore/crypto.c @@ -216,7 +216,7 @@ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, struct scatterlist sg[4], sg_dst; void *dst_buf; size_t dst_size; - const u8 bzero[16] = { 0 }; + static const u8 bzero[16] = { 0 }; u8 iv[crypto_skcipher_ivsize(tfm_cbc)]; size_t zero_padding; -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html