On 11/11, Hou Tao wrote:
> From: Hou Tao <houtao1@xxxxxxxxxx>
>
> bpf_mem_cache_alloc_flags() may call __alloc() directly when there is no
> free object in free list, but it doesn't initialize the allocation hint
> for the returned pointer. It may lead to bad memory dereference when
> freeing the pointer, so fix it by initializing the allocation hint.
>
> Fixes: 822fb26bdb55 ("bpf: Add a hint to allocated objects.")
> Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
Makes sense from briefly looking at the code. But I'll defer to Alexei
on this one. There is also __alloc call from alloc_bulk and I can't
quickly grasp why you're fixing this single place only.
