| From bippy-7c5fe7eed585 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-21929: HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove() |
| |
| Description |
| =========== |
| |
| 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(). |
| |
| The Linux kernel CVE team has assigned CVE-2025-21929 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.8 with commit f645a90e8ff732c48dd9f18815baef08c44ac8a0 and fixed in 6.12.19 with commit 9c677fe859a73f5dd3dd84c27f99e10d28047c73 |
| Issue introduced in 6.8 with commit f645a90e8ff732c48dd9f18815baef08c44ac8a0 and fixed in 6.13.7 with commit e040f11fbca868c6d151e9f2c5730c476abfcf17 |
| Issue introduced in 6.8 with commit f645a90e8ff732c48dd9f18815baef08c44ac8a0 and fixed in 6.14 with commit 823987841424289339fdb4ba90e6d2c3792836db |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-21929 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/hid/intel-ish-hid/ishtp-hid-client.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/9c677fe859a73f5dd3dd84c27f99e10d28047c73 |
| https://git.kernel.org/stable/c/e040f11fbca868c6d151e9f2c5730c476abfcf17 |
| https://git.kernel.org/stable/c/823987841424289339fdb4ba90e6d2c3792836db |
