CVE-2026-89502ring-buffer: Free cpu_buffer::free_page with subbuf_order
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from f9b94daa542a8d2532f0930f01cd9aec2d19621b before 77275ccea06eaf297e8e6ac3fc830cb72086379a; from f9b94daa542a8d2532f0930f01cd9aec2d19621b before 8c1ecdcdea738efe0494af908f12c0ae3a97fffa; from f9b94daa542a8d2532f0930f01cd9aec2d19621b before 81063bbb16c4fcf0136c9117d5e49d3621dd6a1e; from f9b94daa542a8d2532f0930f01cd9aec2d19621b before 234b1a72e9706fe20c08c96f4374ec8e83b934cb | CNA record |
References
- https://git.kernel.org/stable/c/77275ccea06eaf297e8e6ac3fc830cb72086379a
- https://git.kernel.org/stable/c/8c1ecdcdea738efe0494af908f12c0ae3a97fffa
- https://git.kernel.org/stable/c/81063bbb16c4fcf0136c9117d5e49d3621dd6a1e
- https://git.kernel.org/stable/c/234b1a72e9706fe20c08c96f4374ec8e83b934cb
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.