CVE-2026-89502

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

Published

2026-09-11

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/234b1a72e9706fe20c08c96f4374ec8e83b934cb
• https://git.kernel.org/stable/c/77275ccea06eaf297e8e6ac3fc830cb72086379a
• https://git.kernel.org/stable/c/81063bbb16c4fcf0136c9117d5e49d3621dd6a1e
• https://git.kernel.org/stable/c/8c1ecdcdea738efe0494af908f12c0ae3a97fffa

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