- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check resize_disabled before publishing the new subbuf order ring_buffer_subbuf_order_set() stores the new order and only then walks the CPUs, returning -EBUSY if any of them has resizing disabled. A user mapped buffer has resizing disabled, and __rb_map_vma() reads buffer->subbuf_order without buffer->mutex, so an mmap of an already mapped CPU racing the failing order change sizes the mapping with the new order and inserts pages past the sub-buffer into the VMA. Check the CPUs before storing the new order.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 24 days later
· 24 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 117c39200d9d760cbd5944bb89efb7b9c51965aa – < f2099644e1b2a2c0805c5240d63ab0522d9d0174
- affected 117c39200d9d760cbd5944bb89efb7b9c51965aa – < 9fd4ea952e6ac12a63c3fe89f08ad02771aa2c06
- affected 117c39200d9d760cbd5944bb89efb7b9c51965aa – < 32bf47db9237c5b8b6f6aaa5356bb4c79d241f76
- affected 117c39200d9d760cbd5944bb89efb7b9c51965aa – < d860c67c051685abb0460b593b193f0f45f4fa92
- affected 6.10
- unaffected < 6.10
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/f2099644e1b2a2c0805c5240d63ab0522d9d0174 (opens in a new tab)
- https://git.kernel.org/stable/c/9fd4ea952e6ac12a63c3fe89f08ad02771aa2c06 (opens in a new tab)
- https://git.kernel.org/stable/c/32bf47db9237c5b8b6f6aaa5356bb4c79d241f76 (opens in a new tab)
- https://git.kernel.org/stable/c/d860c67c051685abb0460b593b193f0f45f4fa92 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86748 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97617)Record last updated .