- 7.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% 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: iio: buffer: Make IIO DMA fence release RCU-safe The `dma_fence` documentation states that if a custom release implementation is provided, the `dma_fence` object must be freed in an RCU-safe way. The current `iio_dma_fence` implementation uses `kfree()`, which might result in a use-after-free. Remove the custom `release` implementation. This makes the DMA fence core fall back to `dma_fence_free()`, which calls `kfree_rcu()` on the fence. This requires that the fence be the first member of `struct iio_dma_fence`. Using the default release method for extended DMA fence structures is a common pattern.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 33 days later
· 33 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f – < 311595dc0b5621f74d8eb4dc38ef4efcdfe7e769
- affected 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f – < 06a9460b8b792e109cbc934a856d02e5cff217ef
- affected 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f – < 11cef99491117d4264603df159c4ff5f3845a059
- affected 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f – < 8662e56c31cf23b61ca3d11b516efb94c35b8026
- affected 6.11
- unaffected < 6.11
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/311595dc0b5621f74d8eb4dc38ef4efcdfe7e769 (opens in a new tab)
- https://git.kernel.org/stable/c/06a9460b8b792e109cbc934a856d02e5cff217ef (opens in a new tab)
- https://git.kernel.org/stable/c/11cef99491117d4264603df159c4ff5f3845a059 (opens in a new tab)
- https://git.kernel.org/stable/c/8662e56c31cf23b61ca3d11b516efb94c35b8026 (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-2026-80541 (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-2026-89941)Record last updated .