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…137) The OEM USB HID interface found on GPD Win handhelds (VID 2f24, registered to ShenZhen HuiJiaZhi / GameSir, PID 0137) declares 63-byte Input and Feature reports for Report ID 1, but the firmware only transfers 11 data bytes per interrupt. Since commit 0a3fe97 ("HID: core: Mitigate potential OOB by removing bogus memset()"), the HID core rejects undersized reports instead of zero- padding them. This breaks the device entirely on kernels >= v7.0-rc5. Fix it by patching the report descriptor in report_fixup(), reducing Report Count from 63 to 11 for both Input and Feature. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221271 Signed-off-by: honjow <honjow311@gmail.com>
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https://lore.kernel.org/all/20260324013847.68024-1-honjow311@gmail.com/
The OEM USB HID interface found on GPD Win handhelds (VID 2f24, registered to ShenZhen HuiJiaZhi / GameSir, PID 0137) declares 63-byte Input and Feature reports for Report ID 1, but the firmware only transfers 11 data bytes per interrupt.
Since commit 0a3fe97 ("HID: core: Mitigate potential OOB by removing bogus memset()"), the HID core rejects undersized reports instead of zero- padding them. This breaks the device entirely on kernels >= v7.0-rc5.
Fix it by patching the report descriptor in report_fixup(), reducing Report Count from 63 to 11 for both Input and Feature.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221271