[PATCH 0/2] hwmon: Fix ASUS ROG Ryujin HID report handling

From: Arie Miller

Date: Thu Sep 03 2026 - 22:21:46 EST


A Sashiko review found two pre-existing issues in the ASUS ROG Ryujin
driver: missing HID report length validation and a race between completion
updates and reinitialization.

Reject undersized reports and serialize both paths with the existing
spinlock.

Tested on an ASUS ROG Ryujin III EVA using a DKMS-built module with 16,000
concurrent hwmon reads and 50 liquidctl status requests over hidraw. No
failures, timeouts, lock warnings, or HID errors were observed.

Arie Miller (2):
hwmon: (asus_rog_ryujin) Validate HID report lengths
hwmon: (asus_rog_ryujin) Synchronize HID command and report handling

drivers/hwmon/asus_rog_ryujin.c | 30 +++++++++++++++++++++++++-----
1 file changed, 25 insertions(+), 5 deletions(-)

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2.55.0