CVE-2026-89502

EUVD-2026-76408
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.98%
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.187-1
fixed
forky
vulnerable
sid
vulnerable
trixie
vulnerable
trixie (security)
vulnerable
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