# CVE-2025-40107: can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled

CVE-2025-40107 is fixed in 24 products on 1 platform, first by DEBIAN-CVE-2025-40107, released November 3, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-40107
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 3, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40107

## Description

In the Linux kernel, the following vulnerability has been resolved:  can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled  This issue is similar to the vulnerability in the `mcp251x` driver, which was fixed in commit 03c427147b2d ("can: mcp251x: fix resume from sleep before interface was brought up").  In the `hi311x` driver, when the device resumes from sleep, the driver schedules `priv->restart_work`. However, if the network interface was not previously enabled, the `priv->wq` (workqueue) is not allocated and initialized, leading to a null pointer dereference.  To fix this, we move the allocation and initialization of the workqueue from the `hi3110_open` function to the `hi3110_can_probe` function. This ensures that the workqueue is properly initialized before it is used during device resume. And added logic to destroy the workqueue in the error handling paths of `hi3110_can_probe` and in the `hi3110_can_remove` function to prevent resource leaks.

## 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-2025-40107](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40107.md) | Nov 3, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.57-1 | [DEBIAN-CVE-2025-40107](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40107.md) | Nov 3, 2025 |
| Linux | linux Debian 14 | 6.16.12-1 | [DEBIAN-CVE-2025-40107](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40107.md) | Nov 3, 2025 |

---

Data as of 2026-11-08T06:59:42Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.