HID: hyperv: streamline driver probe to avoid devres issues

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.22% · top 88% of all CVEs (12 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

• Linux · Linux

  • affected e6ea3de7abef998aaab9f04a7a11a7c5f56bbe57 – < b7c074d21fe8a8ee3b4f866a12c72cad6a5826eb
  • affected ac0d8318082f549419104cfe9cb6a9deb2df9853 – < 4c419126cf71ca1f358ec0b8ccc448928719d502
  • affected 4d1617e40713a6202b6165ca137b09aaf35637f5 – < a216f6dc0444c3bd900bca66b9f21467d08e3ed3
  • affected 62c68e7cee332e08e625af3bca3318814086490d – < b03e713a400aeb5f969bab4daf47a7402d0df814
  • affected 62c68e7cee332e08e625af3bca3318814086490d – < 19a9457e5e210e408c1f8865b5d93c5a2c90409d
  • affected 62c68e7cee332e08e625af3bca3318814086490d – < 3d48d0fbaaa74a04fb9092780a3f83dc4f3f8160
  • affected 62c68e7cee332e08e625af3bca3318814086490d – < 66ef47faa90d838cda131fe1f7776456cc3b59f2
  • affected 5.10.270 – < 5.10.271
  • affected 5.15.221 – < 5.15.222
  • affected 6.1.188 – < 6.1.189

• Linux · Linux

  • affected 6.5
  • unaffected < 6.5
  • unaffected 5.10.271 – ≤ 5.10.*
  • unaffected 5.15.222 – ≤ 5.15.*
  • unaffected 6.1.189 – ≤ 6.1.*
  • unaffected 6.6.64 – ≤ 6.6.*
  • unaffected 6.11.11 – ≤ 6.11.*
  • unaffected 6.12.2 – ≤ 6.12.*
  • unaffected 6.13 – ≤ *

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2024-53193 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2024-56545](https://cveledger.app/badge/CVE-2024-56545.svg)](https://cveledger.app/cve/CVE-2024-56545)

Record last updated 5 Nov 2026, 20:31 UTC.