Hi, On 5/6/25 8:43 AM, Sudeep Holla wrote:
On Tue, May 06, 2025 at 01:13:02PM +0000, Heyne, Maximilian wrote:Commit 7ab4f0e37a0f ("ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls") corrects the processer entry size but unmasked a longer standing bug where the last entry in the structure can get skipped due to an off-by-one mistake if the last entry ends exactly at the end of the ACPI subtable.Unless the firmware has populated an incorrect value for the header length, I don't see how this is possible. The table_end should point to the address immediately following the last byte of the table. None of the headers are only one byte long, so what am I missing that could explain this apparent off-by-one issue?.
More likely its because the sizeof() fix was merged without proper review and is wrong because the type isn't actually known on the object until the header is checked.
