CVE-2026-46009PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% 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: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 18 days later
· 18 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 |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < c3029721b84f59e790285ad27544ed5d3cb0f2a6
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < c72f6a7ea638f95c486a5cfd86e567b646027687
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < 72099f015d3c77bf2eb703d1aab113bd7a60915a
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < 756ca5e7ed22d9045bb4de4c981f9149278d5cd3
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < 65fc57c8b8f0b31be62be291cb1bb01755cec85d
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < e813c95e4c8edd31599081e6356e20ada30e266d
- affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 – < 3446beddba450c8d6f9aca2f028712ac527fead3
- affected 5.12
- unaffected < 5.12
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References7
- https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6 (opens in a new tab)
- https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687 (opens in a new tab)
- https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a (opens in a new tab)
- https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3 (opens in a new tab)
- https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d (opens in a new tab)
- https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d (opens in a new tab)
- https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3 (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-2026-32306 (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-2026-46009)Record last updated .