| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-22052: staging: gpib: Fix Oops after disconnect in ni_usb |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| staging: gpib: Fix Oops after disconnect in ni_usb |
| |
| If the usb dongle is disconnected subsequent calls to the |
| driver cause a NULL dereference Oops as the bus_interface |
| is set to NULL on disconnect. |
| |
| This problem was introduced by setting usb_dev from the bus_interface |
| for dev_xxx messages. |
| |
| Previously bus_interface was checked for NULL only in the the functions |
| directly calling usb_fill_bulk_urb or usb_control_msg. |
| |
| Check for valid bus_interface on all interface entry points |
| and return -ENODEV if it is NULL. |
| |
| The Linux kernel CVE team has assigned CVE-2025-22052 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.13 with commit 4934b98bb24327c32ed55c96012f019932383da5 and fixed in 6.13.11 with commit b2d8d7959077c5d4b11d0dc6bd2167791fd1c72e |
| Issue introduced in 6.13 with commit 4934b98bb24327c32ed55c96012f019932383da5 and fixed in 6.14.2 with commit 5dc98ba6f7304c188b267ef481281849638447bf |
| Issue introduced in 6.13 with commit 4934b98bb24327c32ed55c96012f019932383da5 and fixed in 6.15 with commit a239c6e91b665f1837cf57b97fe638ef1baf2e78 |
| |
| 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-2025-22052 |
| 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/staging/gpib/ni_usb/ni_usb_gpib.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/b2d8d7959077c5d4b11d0dc6bd2167791fd1c72e |
| https://git.kernel.org/stable/c/5dc98ba6f7304c188b267ef481281849638447bf |
| https://git.kernel.org/stable/c/a239c6e91b665f1837cf57b97fe638ef1baf2e78 |
