CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's batman-adv module, where improper handling of buffer reallocation can lead to a use-after-free condition for the Ethernet header. This flaw may compromise the integrity of traffic isolation features, specifically for the TT and AP isolation handling. System administrators and developers utilizing the batman-adv module in their Linux environments should prioritize addressing this issue to mitigate potential exploitation risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: retrieve ethhdr after potential skb realloc on RX pskb_may_pull() in batadv_interface_rx() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free. This was done correctly for the VLAN header but missed for the ethernet header which is later used for the TT and AP isolation handling.