In the Linux kernel, the following vulnerability has been resolved:
HID: hyperv: streamline driver probe to avoid devres issues
It was found that unloading 'hid_hyperv' module results in a devres complaint:
... hv_vmbus: unregistering driver hid_hyperv ------------[ cut here ]------------ WARNING: CPU: 2 PID: 3983 at drivers/base/devres.c:691 devres_release_group+0x1f2/0x2c0 ... Call Trace: <TASK> ? devres_release_group+0x1f2/0x2c0 ? __warn+0xd1/0x1c0 ? devres_release_group+0x1f2/0x2c0 ? report_bug+0x32a/0x3c0 ? handle_bug+0x53/0xa0 ? exc_invalid_op+0x18/0x50 ? asm_exc_invalid_op+0x1a/0x20 ? devres_release_group+0x1f2/0x2c0 ? devres_release_group+0x90/0x2c0 ? rcu_is_watching+0x15/0xb0 ? __pfx_devres_release_group+0x10/0x10 hid_device_remove+0xf5/0x220 device_release_driver_internal+0x371/0x540 ? klist_put+0xf3/0x170 bus_remove_device+0x1f1/0x3f0 device_del+0x33f/0x8c0 ? __pfx_device_del+0x10/0x10 ? cleanup_srcu_struct+0x337/0x500 hid_destroy_device+0xc8/0x130 mousevsc_remove+0xd2/0x1d0 [hid_hyperv] device_release_driver_internal+0x371/0x540 driver_detach+0xc5/0x180 bus_remove_driver+0x11e/0x2a0 ? __mutex_unlock_slowpath+0x160/0x5e0 vmbus_driver_unregister+0x62/0x2b0 [hv_vmbus] ...
And the issue seems to be that the corresponding devres group is not allocated. Normally, devres_open_group() is called from __hid_device_probe() but Hyper-V HID driver overrides 'hid_dev->driver' with 'mousevsc_hid_driver' stub and basically re-implements __hid_device_probe() by calling hid_parse() and hid_hw_start() but not devres_open_group(). hid_device_probe() does not call __hid_device_probe() for it. Later, when the driver is removed, hid_device_remove() calls devres_release_group() as it doesn't check whether hdev->driver was initially overridden or not.
The issue seems to be related to the commit 62c68e7cee33 ("HID: ensure timely release of driver-allocated resources") but the commit itself seems to be correct.
Fix the issue by dropping the 'hid_dev->driver' override and using hid_register_driver()/hid_unregister_driver() instead. Alternatively, it would have been possible to rely on the default handling but HID_CONNECT_DEFAULT implies HID_CONNECT_HIDRAW and it doesn't seem to work for mousevsc as-is.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 27, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1024-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-oem-24.04bUpgrade linux-image-lowlatency-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1026-nvidia-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-6.8.0-58-generic-64kUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1024-oracle-64kUpgrade linux-image-genericUpgrade linux-image-gkeop-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1028-gcpUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-58-lowlatencyUpgrade linux-image-6.8.0-1026-nvidia-lowlatency-64kUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-6.8.0-58-genericUpgrade linux-image-azure-fdeUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1026-nvidia-64kUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-6.8.0-1026-nvidiaUpgrade linux-image-awsUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.1-1020-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-generic-64kUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1024-ibmUpgrade linux-image-6.8.0-1023-gkeUpgrade linux-image-oem-22.04cUpgrade linux-image-azure-lts-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-raspi-realtimeUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1027-azure-fdeUpgrade linux-image-raspiUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1028-gcp-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.8.0-1027-azureUpgrade linux-image-6.8.0-1027-awsUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-58-lowlatency-64kUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-gkeUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1010-gkeopUpgrade linux-image-azureUpgrade linux-image-6.8.0-1026-oemUpgrade linux-image-oem-24.04aUpgrade linux-image-azure-nvidiaUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oem-24.04Upgrade linux-image-realtimeUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.11.0-18-genericUpgrade linux-image-gcpUpgrade linux-image-virtualUpgrade linux-image-oem-22.04d | Feb 20, 2025 | Dec 27, 2024 |
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