| 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-2025-21928: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() |
| |
| The system can experience a random crash a few minutes after the driver is |
| removed. This issue occurs due to improper handling of memory freeing in |
| the ishtp_hid_remove() function. |
| |
| The function currently frees the `driver_data` directly within the loop |
| that destroys the HID devices, which can lead to accessing freed memory. |
| Specifically, `hid_destroy_device()` uses `driver_data` when it calls |
| `hid_ishtp_set_feature()` to power off the sensor, so freeing |
| `driver_data` beforehand can result in accessing invalid memory. |
| |
| This patch resolves the issue by storing the `driver_data` in a temporary |
| variable before calling `hid_destroy_device()`, and then freeing the |
| `driver_data` after the device is destroyed. |
| |
| The Linux kernel CVE team has assigned CVE-2025-21928 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 5.4.291 with commit 0c1fb475ef999d6c22fc3f963fdf20cb3ed1b03d |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 5.10.235 with commit d3faae7f42181865c799d88c5054176f38ae4625 |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 5.15.179 with commit 01b18a330cda61cc21423a7d1af92cf31ded8f60 |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 6.1.131 with commit cf1a6015d2f6b1f0afaa0fd6a0124ff2c7943394 |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 6.6.83 with commit 560f4d1299342504a6ab8a47f575b5e6b8345ada |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 6.12.19 with commit dea6a349bcaf243fff95dfd0428a26be6a0fb44e |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 6.13.7 with commit eb0695d87a81e7c1f0509b7d8ee7c65fbc26aec9 |
| Issue introduced in 4.9 with commit 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 and fixed in 6.14 with commit 07583a0010696a17fb0942e0b499a62785c5fc9f |
| |
| 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-2025-21928 |
| 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.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/0c1fb475ef999d6c22fc3f963fdf20cb3ed1b03d |
| https://git.kernel.org/stable/c/d3faae7f42181865c799d88c5054176f38ae4625 |
| https://git.kernel.org/stable/c/01b18a330cda61cc21423a7d1af92cf31ded8f60 |
| https://git.kernel.org/stable/c/cf1a6015d2f6b1f0afaa0fd6a0124ff2c7943394 |
| https://git.kernel.org/stable/c/560f4d1299342504a6ab8a47f575b5e6b8345ada |
| https://git.kernel.org/stable/c/dea6a349bcaf243fff95dfd0428a26be6a0fb44e |
| https://git.kernel.org/stable/c/eb0695d87a81e7c1f0509b7d8ee7c65fbc26aec9 |
| https://git.kernel.org/stable/c/07583a0010696a17fb0942e0b499a62785c5fc9f |
