[PATCH 0/2] Harden DPFE driver against buggy/malicious DCPU

Krzysztof Kozlowski krzk at kernel.org
Tue Sep 1 08:39:45 PDT 2026


On Wed, 26 Aug 2026 13:14:57 -0700, Danesh Petigara wrote:
> This patch series hardens the Broadcom STB DPFE driver against potential
> exploitation through a buggy or compromised DCPU coprocessor.
> 
> The DPFE driver exchanges messages with the DCPU over shared memory-mapped
> regions and currently trusts DCPU supplied values without bounds checking
> them before use.
> 
> [...]

Applied, thanks!

[1/2] memory: brcmstb_dpfe: Fix out-of-bounds access due to DCPU offset
      https://git.kernel.org/krzk/linux-mem-ctrl/c/7c0b82d087908765c6c7daeb06943e21b78d523e
[2/2] memory: brcmstb_dpfe: Bounds check DCPU-supplied MSG_ARG_COUNT
      https://git.kernel.org/krzk/linux-mem-ctrl/c/6b07f8c06caca015a0db69e3f323b5186469bc66

Best regards,
-- 
Krzysztof Kozlowski <krzk at kernel.org>




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