| From bippy-5f407fcff5a0 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-2023-52863: hwmon: (axi-fan-control) Fix possible NULL pointer dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| hwmon: (axi-fan-control) Fix possible NULL pointer dereference |
| |
| axi_fan_control_irq_handler(), dependent on the private |
| axi_fan_control_data structure, might be called before the hwmon |
| device is registered. That will cause an "Unable to handle kernel |
| NULL pointer dereference" error. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52863 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 5.10.201 with commit 7d870088db4863c514a7f8751cd593751983029a |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 5.15.139 with commit b3e7eb23a6e97642ff3190431c06475d9ca1e062 |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 6.1.63 with commit 33de53a2706066d526173dc743faf43d92c62105 |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 6.5.12 with commit f62b8969847850ba7596cb145cc47c65ea57dae0 |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 6.6.2 with commit c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb |
| Issue introduced in 5.7 with commit 8412b410fa5e1e494a0fec84c3c462d49870d3f5 and fixed in 6.7 with commit 2a5b3370a1d9750eca325292e291c8c7cb8cf2e0 |
| |
| 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-2023-52863 |
| 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/hwmon/axi-fan-control.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/7d870088db4863c514a7f8751cd593751983029a |
| https://git.kernel.org/stable/c/b3e7eb23a6e97642ff3190431c06475d9ca1e062 |
| https://git.kernel.org/stable/c/33de53a2706066d526173dc743faf43d92c62105 |
| https://git.kernel.org/stable/c/f62b8969847850ba7596cb145cc47c65ea57dae0 |
| https://git.kernel.org/stable/c/c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb |
| https://git.kernel.org/stable/c/2a5b3370a1d9750eca325292e291c8c7cb8cf2e0 |
