On Tue, 23 Jan 2024 at 00:15, Tim Schumacher <timschumi@xxxxxx> wrote: > > This sidesteps a quirk in a few old (2011-ish) UEFI implementations, > where a call to `GetNextVariableName` with a buffer size larger than 512 > bytes will always return `EFI_INVALID_PARAMETER`. > > It is currently unknown whether this is just a botched check or if the > length is interpreted differently, so the underlying buffer is still > sized for 1024 bytes, even if we communicate a smaller size to the > runtime service. > > Cc: stable@xxxxxxxxxxxxxxx # 6.1+ > Signed-off-by: Tim Schumacher <timschumi@xxxxxx> Hello Tim, I wonder if we might just reduce this to 512 and be done with it. Presumably, Windows boots fine in UEFI mode on these machines, which suggests that it passes a value <= 512 too, and I don't recall ever encountering systems using extremely long variable names (i.e., longer than 512 byte)
