CVE-2026-68176 in Linux

Resumen

por MITRE • 2026-08-10

In the Linux kernel, the following vulnerability has been resolved:

tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev

If the mmio_pipe_open() fails to find a PCI device, the hiter->dev will be assigned to NULL. The mmiotrace read() function dereferences the hiter->dev if hiter exists.

Change the test of the read to not only check hiter being NULL, but also the hiter->dev before dereferencing it.

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• Responsable: Linux
• Reservar: 2026-07-30
• Divulgación: 2026-08-10
• Moderación: aceptado
• Artículo: VDB-387527
• CPE: listo
• CWE: CWE-476 (confirmado)
• CVSS: 5.7 (VulDB)
• EPSS: 0.00000
• KEV: no
• Actividades: muy bajo
• Sector: Lawfirm, Hospital, ...

Fuentes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-68176
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-68176
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-68176/