CVE-2026-98251

Summary

The Linux kernel's Open vSwitch implementation has a race condition where it may reallocate memory for confirmed connection tracking entries while other CPU cores are accessing them, potentially leading to data corruption or crashes. This affects systems using Open vSwitch for network virtualization.

Exploitability

Exploitation is moderately difficult and requires specific conditions including concurrent access to the same connection tracking entry from multiple CPUs, but does not require special privileges beyond normal user access to network services.

Blast radius

The vulnerability could impact virtualized environments using Open vSwitch, potentially causing network connectivity issues, service disruptions, or system crashes in high-concurrency scenarios.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to Linux kernel version 6.10 or later where this issue is fixed.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.