ASoC: core: fix possible ZERO_SIZE_PTR pointer dereferencing error.
Since we cannot make sure the 'params->num_regs' will always be none zero here, and then if it equals to zero, the kmemdup() will return ZERO_SIZE_PTR, which equals to ((void *)16). So this patch fix this with just doing the zero check before calling kmemdup(). Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
This commit is contained in:
parent
7d1311b93e
commit
6596aa047b
|
@ -3203,7 +3203,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
|
|||
unsigned int val, mask;
|
||||
void *data;
|
||||
|
||||
if (!component->regmap)
|
||||
if (!component->regmap || !params->num_regs)
|
||||
return -EINVAL;
|
||||
|
||||
len = params->num_regs * component->val_bytes;
|
||||
|
|
Loading…
Reference in New Issue