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CVE-2026-89502

Опубликовано: 11 сент. 2026
Источник: redhat
CVSS3: 4.4

Описание

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.

A flaw was found in the Linux kernel's ring-buffer component. When sub-buffers are configured with a specific memory allocation order greater than zero, the system attempts to free a memory page using an incorrect size. This memory management error can lead to memory corruption, potentially allowing a local attacker to escalate privileges or cause a system crash (Denial of Service).

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-763
https://bugzilla.redhat.com/show_bug.cgi?id=2532342kernel: Linux Kernel: Memory corruption in ring-buffer component

4.4 Medium

CVSS3

Связанные уязвимости

ubuntu
2 дня назад

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.

nvd
4 дня назад

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.

debian
4 дня назад

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

github
4 дня назад

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.

4.4 Medium

CVSS3