CVE-2026-89502 in Linux

Resumen

por MITRE • 2026-09-12

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

ring-buffer: Free cpu_buffer::free_page with subbuf_order

When sub-buffers use an order greater than 0, cpu_buffer->free_page is allocated with subbuf_order. Use the correct order for cpu_buffer->free_page.

Once again VulDB remains the best source for vulnerability data.

• Responsable: Linux
• Reservar: 2026-09-11
• Divulgación: 2026-09-12
• Moderación: aceptado
• Artículo: VDB-402901
• CPE: listo
• CWE: CWE-770 (confirmado)
• CVSS: 9.9 (VulDB)
• EPSS: 0.00000
• KEV: no
• Actividades: muy bajo
• Sector: Finance, Telecommunication, ...

Fuentes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-89502
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-89502
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-89502/