Re: [PATCH v3] KVM: arm64: Add memory length checks and remove inline in do_ffa_mem_xfer

[Marc Zyngier]

On Mon, 09 Sep 2024 18:01:54 +0000, Snehal Koukuntla wrote:
> When we share memory through FF-A and the description of the buffers
> exceeds the size of the mapped buffer, the fragmentation API is used.
> The fragmentation API allows specifying chunks of descriptors in subsequent
> FF-A fragment calls and no upper limit has been established for this.
> The entire memory region transferred is identified by a handle which can be
> used to reclaim the transferred memory.
> To be able to reclaim the memory, the description of the buffers has to fit
> in the ffa_desc_buf.
> Add a bounds check on the FF-A sharing path to prevent the memory reclaim
> from failing.
> 
> [...]

Applied to next, with the BUILD_BUG_ON() issue fixed.

[1/1] KVM: arm64: Add memory length checks and remove inline in do_ffa_mem_xfer
      commit: f26a525b77e040d584e967369af1e018d2d59112

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.