fix: remove unsafe exec() in netlink-genl-families.c

[orbisai0security]

Summary

Fix critical severity security issue in net/netlink-genl-families.c.

Vulnerability

Field	Value
ID	V-001
Severity	CRITICAL
Scanner	multi_agent_ai
Rule	V-001
File	net/netlink-genl-families.c:316
CWE	CWE-120

Description: At net/netlink-genl-families.c:325, memcpy(name, payload, copy) copies attacker-controlled data from a netlink message payload into a destination buffer 'name'. The 'copy' length is derived from the netlink message without strict validation against the actual destination buffer size. If 'copy' exceeds the allocated size of 'name', this results in a heap or stack buffer overflow, overwriting adjacent memory and potentially enabling code execution.

Changes

• net/netlink-genl-families.c

Verification

• Build passes
• Scanner re-scan confirms fix
• LLM code review passed

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Automated security fix by OrbisAI Security