What’s Vulnerable › Vulnerabilities

CVE-2026-90106: net: bridge: arp/nd proxy: fix reading neigh ha

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: net: bridge: arp/nd proxy: fix reading neigh ha Currently neigh ha address is read directly, but that can result in torn/partial reads if the neigh is being updated. Use neigh_ha_snapshot to take a stable snapshot of the address.

Affected products

• Linux: 4.15 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2365b25b4add42bb5f652920b45bc9ad0e35cbc7
• https://git.kernel.org/stable/c/291c9e137b7c74e8a512cded4845352da4c4adda
• https://git.kernel.org/stable/c/490c72868443ff90f47f4ccbaaff1eaf8fed46ab
• https://git.kernel.org/stable/c/57549ab9079122991dfa0f8248ca00e101e8e69b
• https://git.kernel.org/stable/c/884cbf15ccd3980bcc9583073045f91798a86d4e
• https://git.kernel.org/stable/c/a178bcb01051688fb085ffb72cc4b13b5df0fc0f

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