| 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-2022-48708: pinctrl: single: fix potential NULL dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| pinctrl: single: fix potential NULL dereference |
| |
| Added checking of pointer "function" in pcs_set_mux(). |
| pinmux_generic_get_function() can return NULL and the pointer |
| "function" was dereferenced without checking against NULL. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48708 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 4.14.306 with commit 1177bdafe87cbe543a2dc48a9bbac265aa5864db |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 4.19.273 with commit e671e63587c92b3fd767cf82e73129f6d5feeb33 |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 5.4.232 with commit 2b763f7de108cb1a5ad5ed08e617d677341947cb |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 5.10.168 with commit 6e2a0521e4e84a2698f2da3950fb5c5496a4d208 |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 5.15.94 with commit 71668706fbe7d20e6f172fa3287fa8aac1b56c26 |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 6.1.12 with commit bcc487001a15f71f103d102cba4ac8145d7a68f2 |
| Issue introduced in 4.11 with commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98 and fixed in 6.2 with commit d2d73e6d4822140445ad4a7b1c6091e0f5fe703b |
| |
| 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-2022-48708 |
| 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/pinctrl/pinctrl-single.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/1177bdafe87cbe543a2dc48a9bbac265aa5864db |
| https://git.kernel.org/stable/c/e671e63587c92b3fd767cf82e73129f6d5feeb33 |
| https://git.kernel.org/stable/c/2b763f7de108cb1a5ad5ed08e617d677341947cb |
| https://git.kernel.org/stable/c/6e2a0521e4e84a2698f2da3950fb5c5496a4d208 |
| https://git.kernel.org/stable/c/71668706fbe7d20e6f172fa3287fa8aac1b56c26 |
| https://git.kernel.org/stable/c/bcc487001a15f71f103d102cba4ac8145d7a68f2 |
| https://git.kernel.org/stable/c/d2d73e6d4822140445ad4a7b1c6091e0f5fe703b |
