CVE-2025-37748 (GCVE-0-2025-37748)

Vulnerability from cvelistv5 – Published: 2025-05-01 12:55 – Updated: 2026-05-11 21:14
VLAI
Title
iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group Currently, mtk_iommu calls during probe iommu_device_register before the hw_list from driver data is initialized. Since iommu probing issue fix, it leads to NULL pointer dereference in mtk_iommu_device_group when hw_list is accessed with list_first_entry (not null safe). So, change the call order to ensure iommu_device_register is called after the driver data are initialized.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < 2f75cb27bef43c8692b0f5e471e5632f6a9beb99 (git)
Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < 6abd09bed43b8d83d461e0fb5b9a200a06aa8a27 (git)
Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < a0842539e8ef9386c070156103aff888e558a60c (git)
Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c (git)
Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < 69f9d2d37d1207c5a73dac52a4ce1361ead707f5 (git)
Affected: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c , < 38e8844005e6068f336a3ad45451a562a0040ca1 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.24 , ≤ 6.12.* (semver)
Unaffected: 6.13.12 , ≤ 6.13.* (semver)
Unaffected: 6.14.3 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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      "product_status:known_not_affected": "200",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37748.json",
      "version": "3"
    }
  }
}



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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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