# CVE-2024-56689: linux: In the Linux kernel, the following vulnerability has been resolved:  PCI: endpoint: epf-mhi: Avoid NULL dereference i...

CVE-2024-56689 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-56689, released December 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-56689
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 28, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'  If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it.  [kwilczynski: error message update per the review feedback] [bhelgaas: commit log]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.3-1 | [DEBIAN-CVE-2024-56689](https://patchblox.com/security/data/fix/linux/debian-cve-2024-56689.md) | Dec 28, 2024 |
| Linux | linux Debian 14 | 6.12.3-1 | [DEBIAN-CVE-2024-56689](https://patchblox.com/security/data/fix/linux/debian-cve-2024-56689.md) | Dec 28, 2024 |

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