ixgbevf: add missing negotiate_features op to Hyper-V ops table (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.12 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: ixgbevf: add missing negotiate_features op to Hyper-V ops table Commit a7075f501bd3 ("ixgbevf: fix mailbox API compatibility by negotiating supported features") added the .negotiate_features callback to ixgbe_mac_operations and populated it in ixgbevf_mac_ops, but forgot to add it to ixgbevf_hv_mac_ops. This leaves the function pointer NULL on Hyper-V VMs. During probe, ixgbevf_negotiate_api() calls ixgbevf_set_features(), which unconditionally dereferences hw->mac.ops.negotiate_features(). On Hyper-V this results in a NULL pointer dereference: BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine [...] Workqueue: events work_for_cpu_fn RIP: 0010:0x0 [...] Call Trace: ixgbevf_negotiate_api+0x66/0x160 [ixgbevf] ixgbevf_sw_init+0xe4/0x1f0 [ixgbevf] ixgbevf_probe+0x20f/0x4a0 [ixgbevf] local_pci_probe+0x50/0xa0 work_for_cpu_fn+0x1a/0x30 [...] Add ixgbevf_hv_negotiate_features_vf() that returns -EOPNOTSUPP and wire it into ixgbevf_hv_mac_ops. The caller already handles -EOPNOTSUPP gracefully.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/376d74ea03589914fbe2dedcbebf418396c04fd0
- https://git.kernel.org/stable/c/d8a747057a17ffc79e31df1abb11d05e1669d8e5
- https://git.kernel.org/stable/c/2270ebab53128fb73c4a70a292be09094074737f
- https://git.kernel.org/stable/c/4db7b61ec1d1b2b67c0881b62fc4f9583bc21484
- https://git.kernel.org/stable/c/1455ff8809843e6e83f1f5b5c0bcc2224c99a3cb
- https://git.kernel.org/stable/c/4821d563cd7f251ae728be1a6d04af82a294a5b9
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-27598
- GCVE · GCVE-0-2026-43094
CERT-FR advisories
- CERTFR-2026-AVI-1298 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0956 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0927 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0864 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0862 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.158 < 6.2cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.114 < 6.6.136cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.12.55 < 6.12.83cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.17.5 < 6.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.18.1 < 6.18.24cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.14cpe:2.3:o:linux:linux_kernel:6.18:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.18:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 871ac1cd4ce4804defcb428cbb003fd84c415ff4 < 376d74ea03589914fbe2dedcbebf418396c04fd0 ; affected 2e0aab9ddaf1428602c78f12064cd1e6ffcc4d18 < d8a747057a17ffc79e31df1abb11d05e1669d8e5 ; affected bf580112ed61736c2645a893413a04732505d4b1 < 2270ebab53128fb73c4a70a292be09094074737f ; affected a7075f501bd33c93570af759b6f4302ef0175168 < 4db7b61ec1d1b2b67c0881b62fc4f9583bc21484 ; affected a7075f501bd33c93570af759b6f4302ef0175168 < 1455ff8809843e6e83f1f5b5c0bcc2224c99a3cb ; affected a7075f501bd33c93570af759b6f4302ef0175168 < 4821d563cd7f251ae728be1a6d04af82a294a5b9 |
| Linux · Linux | affected 6.18 ; unaffected 0 < 6.18 ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.136 ≤ 6.6.* ; unaffected 6.12.83 ≤ 6.12.* ; unaffected 6.18.24 ≤ 6.18.* |
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 |