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SubjectRe: [v4l-dvb-maintainer] [PATCH] V4L/DVB: potential leak in dvb-bt8xx
Florin Malita wrote:
> Trent Piepho wrote:
>> I believe that 'state' will be kfree'd by the dst_attach() function if there
>> is a failure. Not what you would expect, to have it allocated in the bt8xx
>> driver (why do is there??) and freed on error in a different function.
>>
>
> Hm, you're right - it is kfreed in dst_attach(). But we're still missing
> the kmalloc result check...
>
> Signed-off-by: Florin Malita <fmalita@gmail.com>
> ---
>
> dvb-bt8xx.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
> index fb6c4cc..d22ba4e 100644
> --- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c
> +++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
> @@ -665,6 +665,9 @@ static void frontend_init(struct dvb_bt8
> case BTTV_BOARD_TWINHAN_DST:
> /* DST is not a frontend driver !!! */
> state = (struct dst_state *) kmalloc(sizeof (struct dst_state), GFP_KERNEL);
> + if (!state)
> + break;
> +
> /* Setup the Card */
> state->config = &dst_config;
> state->i2c = card->i2c_adapter;
>



This patch was applied a few days back

Manu
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