Riskcovery

CVE-2026-89502

ring-buffer: Free cpu_buffer::free_page with subbuf_order

State
Published
Severity
Not scored
Published
Sep 11, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • f9b94daa542a8d2532f0930f01cd9aec2d19621b to before 77275ccea06eaf297e8e6ac3fc830cb72086379aAffected
  • f9b94daa542a8d2532f0930f01cd9aec2d19621b to before 8c1ecdcdea738efe0494af908f12c0ae3a97fffaAffected
  • f9b94daa542a8d2532f0930f01cd9aec2d19621b to before 81063bbb16c4fcf0136c9117d5e49d3621dd6a1eAffected
  • f9b94daa542a8d2532f0930f01cd9aec2d19621b to before 234b1a72e9706fe20c08c96f4374ec8e83b934cbAffected
LinuxLinux
  • 6.8Affected
  • before 6.8Not affected
  • 6.12.109 through 6.12.*Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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