Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: phy: freescale: imx8qm-hsio: fix NULL pointer dereference During the probe the… (CVE-2026-45874)
A NULL pointer dereference vulnerability was identified and resolved in the Linux kernel's Freescale i.MX8QM HSIO PHY driver. The issue occurs during device probing when a device tree property is missing, leading to a NULL pointer being dereferenced unconditionally. This can cause a denial of service by crashing the kernel. The vulnerability has a moderate CVSS score of 5.5 and does not impact confidentiality or integrity, only availability.
AI Analysis
Technical Summary
The Linux kernel's Freescale i.MX8QM HSIO PHY driver contained a vulnerability where the refclk_pad pointer was set to NULL if the 'fsl,refclk-pad-mode' property was absent in the device tree node. However, the pointer was used without a NULL check in the imx_hsio_configure_clk_pad() function, resulting in a NULL pointer dereference during the probe process. This flaw could cause a kernel crash and denial of service. The vulnerability is tracked as CVE-2026-45874 and has a CVSS 3.1 score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Potential Impact
Exploitation of this vulnerability can lead to a denial of service condition by crashing the Linux kernel due to a NULL pointer dereference. There is no impact on confidentiality or integrity. The attack requires local access with low privileges and no user interaction is needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vulnerability description indicates it has been resolved in the Linux kernel, so applying the latest kernel updates that include this fix is recommended once available. Until then, avoid running untrusted code or configurations that could trigger this probe path.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: phy: freescale: imx8qm-hsio: fix NULL pointer dereference During the probe the… (CVE-2026-45874)
Description
A NULL pointer dereference vulnerability was identified and resolved in the Linux kernel's Freescale i.MX8QM HSIO PHY driver. The issue occurs during device probing when a device tree property is missing, leading to a NULL pointer being dereferenced unconditionally. This can cause a denial of service by crashing the kernel. The vulnerability has a moderate CVSS score of 5.5 and does not impact confidentiality or integrity, only availability.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's Freescale i.MX8QM HSIO PHY driver contained a vulnerability where the refclk_pad pointer was set to NULL if the 'fsl,refclk-pad-mode' property was absent in the device tree node. However, the pointer was used without a NULL check in the imx_hsio_configure_clk_pad() function, resulting in a NULL pointer dereference during the probe process. This flaw could cause a kernel crash and denial of service. The vulnerability is tracked as CVE-2026-45874 and has a CVSS 3.1 score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Potential Impact
Exploitation of this vulnerability can lead to a denial of service condition by crashing the Linux kernel due to a NULL pointer dereference. There is no impact on confidentiality or integrity. The attack requires local access with low privileges and no user interaction is needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vulnerability description indicates it has been resolved in the Linux kernel, so applying the latest kernel updates that include this fix is recommended once available. Until then, avoid running untrusted code or configurations that could trigger this probe path.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jq7f-47xv-x2xg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-45874"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a3ef7ef27e9c79719034bd2
Added to database: 06/26/2026, 22:06:39 UTC
Last enriched: 08/01/2026, 02:48:18 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 101
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