Re: [PATCH net-next v3 6/9] net: inet: do not leave a dangling sk pointer in inet_create()
From: Kuniyuki Iwashima
Date: Mon Oct 14 2024 - 17:37:59 EST
From: Ignat Korchagin <ignat@xxxxxxxxxxxxxx>
Date: Mon, 14 Oct 2024 16:38:05 +0100
> sock_init_data() attaches the allocated sk object to the provided sock
> object. If inet_create() fails later, the sk object is freed, but the
> sock object retains the dangling pointer, which may create use-after-free
> later.
>
> Clear the sk pointer in the sock object on error.
>
> Signed-off-by: Ignat Korchagin <ignat@xxxxxxxxxxxxxx>
Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>