NTB: ntb_transport: Reject oversized TX buffers (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.50 % · percentile 43 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: NTB: ntb_transport: Reject oversized TX buffers ntb_process_tx() handles an oversized buffer by calling tx_handler() with a NULL data pointer and returning success. ntb_netdev therefore neither frees the skb in its completion callback nor takes its enqueue error path, leaking it. Reject oversized buffers in ntb_transport_tx_enqueue() before acquiring a queue entry and return -EMSGSIZE. The caller retains ownership of the buffer, and the preceding netdev patch frees the skb when enqueue returns this permanent error.
References
- https://git.kernel.org/stable/c/4890152a3069f5cb58cc24b08cfd5fe95e568fa1
- https://git.kernel.org/stable/c/668aa3238548584ca9772da9cf43ae8c2389bbf1
- https://git.kernel.org/stable/c/9b0fa8a9e1057614a533cc3f18b17f82aab028d8
- https://git.kernel.org/stable/c/b6db88cde0fb5c3bd2d3cd2bebcc06b5ce146e88
- https://git.kernel.org/stable/c/a7f22105a7df8c7fd74d0af27ace6fa94fe03d87
- https://git.kernel.org/stable/c/6b6bbc6c878d64eacc60877df49fce7b1b6a08d0
- https://git.kernel.org/stable/c/75a604e9f1cfdebda421062fdf42225ca32154cd
- https://git.kernel.org/stable/c/a4f2387db6f1cc2f03abba7f3a6807ad61e26ff7
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-76310
- GCVE · GCVE-0-2026-80987
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 4890152a3069f5cb58cc24b08cfd5fe95e568fa1 ; affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 668aa3238548584ca9772da9cf43ae8c2389bbf1 ; affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 9b0fa8a9e1057614a533cc3f18b17f82aab028d8 ; affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < b6db88cde0fb5c3bd2d3cd2bebcc06b5ce146e88 ; affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < a7f22105a7df8c7fd74d0af27ace6fa94fe03d87 ; affected fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 6b6bbc6c878d64eacc60877df49fce7b1b6a08d0 |
| Linux · Linux | affected 3.9 ; unaffected 0 < 3.9 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |