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VULNERABILITIES

CVE-2026-89501 Details

Description

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().

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/24974bd0da1b47fd56c975533ead50abf754e74d kernel.org
https://git.kernel.org/stable/c/6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2 kernel.org
https://git.kernel.org/stable/c/8a496aaa3da6e8d545896c2370c7e617cc931ae2 kernel.org
https://git.kernel.org/stable/c/bf242baf58de03467f226c8e29554c9495dca7fc kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89501
NVD Published Date:
Sep 11, 2026
NVD Last Modified:
Sep 13, 2026
Source:
kernel.org
CVE-2026-89501 Details - Not Deferred