[PATCH v2 7/8] crypto: stm32/cryp - fix bugs and crash in tests

Nicolas Toromanoff nicolas.toromanoff at foss.st.com
Tue Nov 16 07:20:28 PST 2021


Hello,

> +static void stm32_cryp_write_ccm_first_header(struct stm32_cryp *cryp)
> +{
> [...]
> +	} else {
> +		/* Build the two first u32 of B1 */
> +		b8[0] = 0xFF;
> +		b8[1] = 0xFE;
> +		b8[2] = alen & 0xFF000000 >> 24;
> +		b8[3] = alen & 0x00FF0000 >> 16;
> +		b8[4] = alen & 0x0000FF00 >> 8;

Smatch found a bug here: "warn: shift has higher precedence than mask"

Regards,
Nicolas.



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