SB20260828182 - Heap-based buffer overflow in Linux kernel ethernet airoha driver
Published: August 28, 2026
Security Bulletin ID
SB20260828182
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2026-80617)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a heap-based buffer overflow in airoha_ppe_foe_verify_entry() when processing a hash value greater than or equal to half of ppe_num_entries. A local user can trigger the vulnerable code path to cause a denial of service.
The issue is caused by allocating the foe_check_time buffer with too few bytes for u16 entries.
Remediation
Install update from vendor's website.