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 |
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| 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