Re: [PATCH bpf-next] bpf: initialize storage pointers to NULL to prevent freeing garbage pointer

[Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>]

On Mon, Mar 9, 2020 at 3:28 PM Andrii Nakryiko <andriin@xxxxxx> wrote:
>
> Local storage array isn't initialized, so if cgroup storage allocation fails
> for BPF_CGROUP_STORAGE_SHARED, error handling code will attempt to free
> uninitialized pointer for BPF_CGROUP_STORAGE_PERCPI storage type. Avoid this
> by always initializing storage pointers to NULLs.
>
> Fixes: 8bad74f9840f ("bpf: extend cgroup bpf core to allow multiple cgroup storage types")
> Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>

Applied to bpf tree and fixed typo in commit log.