# CVE-2025-40156: linux: In the Linux kernel, the following vulnerability has been resolved:  PM / devfreq: mtk-cci: Fix potential error point...

CVE-2025-40156 is fixed in 24 products on 1 platform, first by DEBIAN-CVE-2025-40156, released November 12, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-40156
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 12, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  PM / devfreq: mtk-cci: Fix potential error pointer dereference in probe()  The drv->sram_reg pointer could be set to ERR_PTR(-EPROBE_DEFER) which would lead to a error pointer dereference.  Use IS_ERR_OR_NULL() to check that the pointer is valid.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | dtb-aarch64 opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-64kb opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-64kb sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 |
| Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-default opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-default sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-default sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-default sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.81.3.150600.12.36.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-default-base opensuse-leap 16.0 | 6.12.0-160000.8.1.160000.2.5 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.81.3.150600.12.36.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.25.1.150700.17.17.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-default-base sles 16.0 | 6.12.0-160000.8.1.160000.2.5 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-docs opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.25.2 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-docs sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-kvmsmall opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-livepatch-SLE15-SP6-RT_Update_18 sles 15.6 | 1-150600.1.3.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 |
| Linux | kernel-livepatch-SLE15-SP6_Update_18 sles 15.6 | 1-150600.13.3.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_7 sles 15.7 | 1-150700.1.3.1 | [SUSE-SU-2025:4516-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4516-1.md) | Dec 23, 2025 |
| Linux | kernel-livepatch-SLE15-SP7_Update_7 sles 15.7 | 1-150700.15.3.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-obs-build opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-obs-qa opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 |
| Linux | kernel-rt opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 |
| Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.81.2 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-source opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-source sles 15.6 | 6.4.0-150600.23.81.2 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-source sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-source sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-source-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 |
| Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 |
| Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-syms opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-syms sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 |
| Linux | kernel-syms-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 |
| Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 |
| Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-zfcpdump opensuse-leap 16.0 | 6.12.0-160000.8.1 | [OPENSUSE-SU-2025:20172-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20172-1.md) | Dec 19, 2025 |
| Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 |
| Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 |
| Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.8.1 | [SUSE-SU-2026:20015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20015-1.md) | Dec 19, 2025 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.158-1 | [DEBIAN-CVE-2025-40156](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40156.md) | Nov 12, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.57-1 | [DEBIAN-CVE-2025-40156](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40156.md) | Nov 12, 2025 |
| Linux | linux Debian 14 | 6.17.6-1 | [DEBIAN-CVE-2025-40156](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40156.md) | Nov 12, 2025 |

---

Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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