Re: [PATCH v2 6/8] net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()

From: Miquel Raynal
Date: Tue Oct 08 2024 - 04:40:23 EST


Hi Ignat,

ignat@xxxxxxxxxxxxxx wrote on Mon, 7 Oct 2024 22:35:00 +0100:

> sock_init_data() attaches the allocated sk object to the provided sock
> object. If ieee802154_create() fails later, the allocated sk object is
> freed, but the dangling pointer remains in the provided sock object, which
> may allow use-after-free.
>
> Clear the sk pointer in the sock object on error.
>
> Signed-off-by: Ignat Korchagin <ignat@xxxxxxxxxxxxxx>

Reviewed-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>

Thanks,
Miquèl