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🛡️ CVE-2025-21929 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove()

In the Linux kernel, the following vulnerability has been resolved:

HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove()

During the rmmod operation for the intel_ishtp_hid driver, a

use-after-free issue can occur in the hid_ishtp_cl_remove() function.

The function hid_ishtp_cl_deinit() is called before ishtp_hid_remove(),

which can lead to accessing freed memory or resources during the

removal process.

Call Trace:

? ishtp_cl_send+0x168/0x220 [intel_ishtp]

? hid_output_report+0xe3/0x150 [hid]

hid_ishtp_set_feature+0xb5/0x120 [intel_ishtp_hid]

ishtp_hid_request+0x7b/0xb0 [intel_ishtp_hid]

hid_hw_request+0x1f/0x40 [hid]

sensor_hub_set_feature+0x11f/0x190 [hid_sensor_hub]

_hid_sensor_power_state+0x147/0x1e0 [hid_sensor_trigger]

hid_sensor_runtime_resume+0x22/0x30 [hid_sensor_trigger]

sensor_hub_remove+0xa8/0xe0 [hid_sensor_hub]

hid_device_remove+0x49/0xb0 [hid]

hid_destroy_device+0x6f/0x90 [hid]

ishtp_hid_remove+0x42/0x70 [intel_ishtp_hid]

hid_ishtp_cl_remove+0x6b/0xb0 [intel_ishtp_hid]

ishtp_cl_device_remove+0x4a/0x60 [intel_ishtp]

...

Additionally, ishtp_hid_remove() is a HID level power off, which should

occur before the ISHTP level disconnect.

This patch resolves the issue by reordering the calls in

hid_ishtp_cl_remove(). The function ishtp_hid_remove() is now

called before hid_ishtp_cl_deinit().

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2025-21929 is recorded against 2 packages.

  • kernel (from 6.13.0 up to 6.13.7)
  • linux-kernel

Timeline and source

Published on 1 April 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-21929 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-04-01
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.13.0 6.13.7
linux-kernel — —

Similar Threats

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