Re: [PATCH] arm64: vdso: fix AArch32 compat init allocation leaks

[Will Deacon]

On Mon, Mar 23, 2026 at 10:41:16PM +0100, Osama Abdelkader wrote:
> aarch32_alloc_vdso_pages() allocates the AA32 vdso pagelist, the compat
> sigpage, then the kuser vectors page. If aarch32_alloc_sigpage() or
> aarch32_alloc_kuser_vdso_page() fails, earlier allocations were not freed.

But why should they be freed? The vectors, sigpage and vdso are
independent from one another, so we can limp along with whatever we
managed to allocate. I'm not sure how far we'll get, mind, if single
page allocations are failing at initcall time...

Will