| 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-2025-37972: Input: mtk-pmic-keys - fix possible null pointer dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Input: mtk-pmic-keys - fix possible null pointer dereference |
| |
| In mtk_pmic_keys_probe, the regs parameter is only set if the button is |
| parsed in the device tree. However, on hardware where the button is left |
| floating, that node will most likely be removed not to enable that |
| input. In that case the code will try to dereference a null pointer. |
| |
| Let's use the regs struct instead as it is defined for all supported |
| platforms. Note that it is ok setting the key reg even if that latter is |
| disabled as the interrupt won't be enabled anyway. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37972 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit b581acb49aec5c3b0af9ab1c537fb73481b79069 and fixed in 6.1.139 with commit 334d74a798463ceec02a41eb0e2354aaac0d6249 |
| Issue introduced in 6.0 with commit b581acb49aec5c3b0af9ab1c537fb73481b79069 and fixed in 6.6.91 with commit 90fa6015ff83ef1c373cc61b7c924ab2bcbe1801 |
| Issue introduced in 6.0 with commit b581acb49aec5c3b0af9ab1c537fb73481b79069 and fixed in 6.12.29 with commit 619c05fb176c272ac6cecf723446b39723ee6d97 |
| Issue introduced in 6.0 with commit b581acb49aec5c3b0af9ab1c537fb73481b79069 and fixed in 6.14.7 with commit 09429ddb5a91e9e8f72cd18c012ec4171c2f85ec |
| Issue introduced in 6.0 with commit b581acb49aec5c3b0af9ab1c537fb73481b79069 and fixed in 6.15 with commit 11cdb506d0fbf5ac05bf55f5afcb3a215c316490 |
| |
| 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-2025-37972 |
| 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/input/keyboard/mtk-pmic-keys.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/334d74a798463ceec02a41eb0e2354aaac0d6249 |
| https://git.kernel.org/stable/c/90fa6015ff83ef1c373cc61b7c924ab2bcbe1801 |
| https://git.kernel.org/stable/c/619c05fb176c272ac6cecf723446b39723ee6d97 |
| https://git.kernel.org/stable/c/09429ddb5a91e9e8f72cd18c012ec4171c2f85ec |
| https://git.kernel.org/stable/c/11cdb506d0fbf5ac05bf55f5afcb3a215c316490 |
