CVE-2026-63836: batman-adv: tp_meter: avoid divide-by-zero for dec_cwnd
batman-adv: tpmeter: avoid divide-by-zero for deccwnd
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.150.1-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63836?
The severity of CVE-2026-63836 is classified as risk level 14.
How do I fix CVE-2026-63836?
To fix CVE-2026-63836, update to the latest version of the Linux kernel where the vulnerability has been resolved.
What is affected by CVE-2026-63836?
CVE-2026-63836 affects the Linux kernel, specifically the batman-adv module dealing with cwnd calculations.
What are the potential impacts of CVE-2026-63836?
The potential impacts of CVE-2026-63836 include the risk of divide-by-zero errors, leading to unexpected behavior in the network protocol.
Why is CVE-2026-63836 significant?
CVE-2026-63836 is significant because it addresses a critical issue in the network resource management of the Linux kernel that could disrupt operations.