Re: [PATCH] firmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache)

On 23/5/25 16:41, Jaroslav Kysela wrote:

KASAN reported out of bounds access - cs_dsp_ctl_cache_init_multiple_offsets(). The code uses mock_coeff_template.length_bytes (4 bytes) for register value allocations. But later, this length is set to 8 bytes which causes test code failures.

As fix, just remove the lenght override, keeping the original value 4 for all operations.

Cc: Simon Trimmer simont@opensource.cirrus.com Cc: Charles Keepax ckeepax@opensource.cirrus.com Cc: Richard Fitzgerald rf@opensource.cirrus.com Cc: patches@opensource.cirrus.com Cc: stable@vger.kernel.org Signed-off-by: Jaroslav Kysela perex@perex.cz

Reviewed-by: Richard Fitzgerald rf@opensource.cirrus.com