Re: [PATCH v6] soc: aspeed: lpc-snoop: Fix usercopy overflow in snoop_file_read

Karthikeyan KS <[email protected]> Sat, 20 Jun 2026 13:11:50 +0000
Newsgroups org.ozlabs.lists.linux-aspeed,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-hardening,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
On Wed, 2026-06-17 at 13:10 +0000, Andrew Jeffery wrote:
> Can you confirm you have tested on hardware a backport of this
> patch to your BSP kernel?

Not until yesterday, done now. Backported the fix to
the BSP kernel (5.4.x) on the AST2600 BMC where the original failure
was observed. Tested under continuous host reboot cycles with concurrent
userspace reads on /dev/aspeed-lpc-snoop0. no panic, no usercopy
splat. Same workload on the unpatched BSP reproduced reliably.

Thanks,
Karthikeyan