vxlan: fix reading neigh ha
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: vxlan: fix reading neigh ha Currently arp/neigh_reduce read neigh ha directly which can lead to partial reads while the neigh is being updated. Use neigh_ha_snapshot to take a stable snapshot of the address similar to route_shortcircuit which already does the right thing.
Why it matters now
EPSS 0.00215 11th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +3Red Hat: 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90105
- 2026-10-03 Alias added: GHSA-6mp3-g7qw-8rgw
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-13 CVSS score added · Red Hat
- 2026-10-16 Fix available: Linux/[email protected], Linux/Linux@f43ef9a3f9c121472a0754c9e9bff13317ace0f7 · CNA
- 2026-10-16 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@6093baf2b2c57e7da33bacd2223570a78b416d89 +1 · CNA
- 2026-10-21 2 new references · CNA
- 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@a1e86c5b4463178751a9fd3f0a3876a602dc360c · CNA
- 2026-10-30 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/a1e86c5b4463178751a9fd3f0a3876a602dc360c
- https://git.kernel.org/stable/c/6093baf2b2c57e7da33bacd2223570a78b416d89
- https://git.kernel.org/stable/c/751cb520f9e47538b7223df133806a29fc41f54f
- https://git.kernel.org/stable/c/f43ef9a3f9c121472a0754c9e9bff13317ace0f7
- https://git.kernel.org/stable/c/ecc8bac11a101e5f6989a14b92e17b51f9761630
- https://git.kernel.org/stable/c/b824059a673b2283e78c7aae2c7d257aad7f0e1d
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Sources
- CVE-2026-90105 · CVE Program
- CVE-2026-90105 · NVD
- FIRST EPSS
- GHSA-6mp3-g7qw-8rgw · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90105 · Red Hat security data · CC BY 4.0
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