# CVE-2025-37977: scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set

CVE-2025-37977 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-37977, released May 20, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-37977
- Priority: High
- CVSS: 7.0 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 20, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-37977

## Description

In the Linux kernel, the following vulnerability has been resolved:  scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set  If dma-coherent property isn't set then descriptors are non-cacheable and the iocc shareability bits should be disabled. Without this UFS can end up in an incompatible configuration and suffer from random cache related stability issues.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.27-1 | [DEBIAN-CVE-2025-37977](https://patchblox.com/security/data/fix/linux/debian-cve-2025-37977.md) | May 20, 2025 |
| Linux | linux Debian 14 | 6.12.27-1 | [DEBIAN-CVE-2025-37977](https://patchblox.com/security/data/fix/linux/debian-cve-2025-37977.md) | May 20, 2025 |

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