CVE-2026-46306: flow_dissector: do not dissect PPPoE PFC frames
flowdissector: do not dissect PPPoE PFC frames
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 6.6.141.1-1 - Configuration
Update/patch the kernel so the flow dissector driver does not dissect PPPoE PFC frames (to avoid unaligned access exceptions when PPPoE sessions are active with RPS enabled).
flow dissector driver Dissect PPPoE PFC frames = disabled
Event History
Frequently Asked Questions
What is the severity of CVE-2026-46306?
The severity of CVE-2026-46306 is rated as 33, indicating a low to moderate risk.
How do I fix CVE-2026-46306?
To resolve CVE-2026-46306, ensure that you update your Linux kernel to the latest patched version.
What type of frames does CVE-2026-46306 address?
CVE-2026-46306 addresses issues with dissecting PPPoE PFC frames in the Linux kernel.
Which software is affected by CVE-2026-46306?
CVE-2026-46306 affects the Linux kernel software.
How was CVE-2026-46306 resolved?
CVE-2026-46306 was resolved by modifying the flow dissector logic to avoid dissection of PPPoE PFC frames.