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VULNERABILITIES

CVE-2026-99160 Details

Description

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Do not show buffer_meta for CPUs without a buffer The per_cpu/cpuN/buffer_meta files are created for every possible CPU, but buffer->buffers[cpu] is only allocated once that CPU comes online. Reading the file of a CPU that never came online dereferences a NULL cpu_buffer in rbm_start(). Fail the open with -ENODEV when the CPU has no buffer, as the other per CPU ring buffer interfaces do.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/3f23cae09a4677a3f7c163a68388512cb231ff22 kernel.org
https://git.kernel.org/stable/c/445bc0e0ed7b3f69b78a0fd8d3a8fdb4e20bc379 kernel.org
https://git.kernel.org/stable/c/8512d0312cc0ea83ca4511b164c29a138bbb0c21 kernel.org
https://git.kernel.org/stable/c/ae670c1a24fb5ffb167f26358cf47a5f0abbd670 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-2026-99160
NVD Published Date:
Oct 28, 2026
NVD Last Modified:
Oct 30, 2026
Source:
kernel.org
CVE-2026-99160 Details - Not Deferred