Re: [PATCH][next] can: etas_es58x: Fix potential null pointer dereference on pointer cf

From: Colin Ian King
Date: Thu Apr 15 2021 - 05:12:51 EST


On 15/04/2021 10:03, Marc Kleine-Budde wrote:
> On 15.04.2021 09:55:35, Colin King wrote:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> The pointer cf is being null checked earlier in the code, however the
>> update of the rx_bytes statistics is dereferencing cf without null
>> checking cf. Fix this by moving the statement into the following code
>> block that has a null cf check.
>>
>> Addresses-Coverity: ("Dereference after null check")
>> Fixes: 8537257874e9 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> A somewhat different fix is already in net-next/master
>
> https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=e2b1e4b532abdd39bfb7313146153815e370d60c

+1 on that

>
> Marc
>