What’s Vulnerable › Vulnerabilities

CVE-2026-80617: net: airoha: fix foe_check_time allocation size

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-08-29

Description

In the Linux kernel, the following vulnerability has been resolved: net: airoha: fix foe_check_time allocation size foe_check_time is declared as u16 pointer but was allocated with only ppe_num_entries bytes instead of ppe_num_entries * sizeof(u16). When airoha_ppe_foe_verify_entry() is called with hash >= ppe_num_entries/2, it writes beyond the allocated buffer, causing heap buffer overflow and potential kernel crash.

Affected products

• Linux kernel: from 6.18.33 before 6.18.40; 6.19 — fixed in 6.18.40, 7.2

How to fix

Upgrade to a fixed version: Linux kernel 6.18.40, 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/112b5eff24e044561ee9599a0d34e0fcea1df4e0
• https://git.kernel.org/stable/c/5c121ee635680c93d7074becf14cfbaac140f80d
• https://git.kernel.org/stable/c/9f7cd1e26d2f1766438edc9b9254f2c618f9ae98

Get alerted when CVE-2026-80617 or the next vulnerability affects your stack