SEPTEMBER 14, 2026
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Case File

CVE-2026-89501

HIGH · CVSS 7.8 EPSS 0.16%

Source: NVD + CISA KEV + EPSS · Published 2026-09-11 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

A race condition vulnerability exists in the Linux kernel's ring buffer implementation, specifically during the resizing of a subbuffer, which can lead to inconsistent state management. This flaw could potentially allow for memory corruption or system instability. Linux system administrators and developers should prioritize addressing this issue to maintain system integrity and performance.

CVE
CVE-2026-89501
Severity
HIGH
CVSS
7.8
EPSS
0.16%
Linux

Original NVD 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().