CVE-2026-72045
octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 4 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF rvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct index into the LMT map table to read another function's LMTLINE physical base address and copy it into the caller's own LMT map table entry. The mailbox dispatcher authenticates req->hdr.pcifunc from the IRQ source, but req->base_pcifunc is a separate payload field and is not sanitized. Reject the request with -EPERM when a VF caller's base_pcifunc is not a valid function under its own PF. is_pf_func_valid() bounds the FUNC field to the PF's configured VF count, keeping the computed index inside the caller's own slot block.
Weaknesses (CWE)
- CWE-862 — Missing Authorization
References
- https://git.kernel.org/stable/c/04c014e49b9f53d58a8f94adece8a0af3ae1b85c
- https://git.kernel.org/stable/c/6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed
- https://git.kernel.org/stable/c/e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11
- https://git.kernel.org/stable/c/54535692bec9ef464adc714108eb19e49e38b5a2
- https://git.kernel.org/stable/c/c73b8795b45f4ad5a95120d2e9b435ea4616e08e
- https://git.kernel.org/stable/c/59da37fee81a8d76079313348ca13c5bc90dd6ae
- https://git.kernel.org/stable/c/8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-59003
- GCVE · GCVE-0-2026-72045
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1204 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1069 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 893ae97214c385be02f8ec097298cc48c7f0d905 < 04c014e49b9f53d58a8f94adece8a0af3ae1b85c ; affected 893ae97214c385be02f8ec097298cc48c7f0d905 < 6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed ; affected 893ae97214c385be02f8ec097298cc48c7f0d905 < e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11 ; affected 893ae97214c385be02f8ec097298cc48c7f0d905 < 54535692bec9ef464adc714108eb19e49e38b5a2 ; affected 893ae97214c385be02f8ec097298cc48c7f0d905 < c73b8795b45f4ad5a95120d2e9b435ea4616e08e ; affected 893ae97214c385be02f8ec097298cc48c7f0d905 < 59da37fee81a8d76079313348ca13c5bc90dd6ae |
| Linux · Linux | affected 5.14 ; unaffected 0 < 5.14 ; unaffected 5.15.217 ≤ 5.15.* ; unaffected 6.1.184 ≤ 6.1.* ; unaffected 6.6.148 ≤ 6.6.* ; unaffected 6.12.101 ≤ 6.12.* |
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 |