CVE-2026-89501

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Hold cpu_buffer::lock when resizing a subbuf Because, ring_buffer_subbuf_order_set() can clear cpu_buffer->free_page, hold cpu_buffer->lock to prevent races with ring_buffer_alloc_read_page() and ring_buffer_free_read_page().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/24974bd0da1b47fd56c975533ead50abf754e74d
https://git.kernel.org/stable/c/6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2
https://git.kernel.org/stable/c/8a496aaa3da6e8d545896c2370c7e617cc931ae2
https://git.kernel.org/stable/c/bf242baf58de03467f226c8e29554c9495dca7fc

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:19

Updated : 2026-09-13 07:17

NVD link : CVE-2026-89501

Mitre link : CVE-2026-89501

CVE.ORG link : CVE-2026-89501

JSON object : View

Products Affected

No product.

CWE

No CWE.

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