Linux Ker: Batman-adv OGM aggregation skb overflow fix
CVE-2026-31683 Published on April 25, 2026

batman-adv: avoid OGM aggregation when skb tailroom is insufficient
In the Linux kernel, the following vulnerability has been resolved: batman-adv: avoid OGM aggregation when skb tailroom is insufficient When OGM aggregation state is toggled at runtime, an existing forwarded packet may have been allocated with only packet_len bytes, while a later packet can still be selected for aggregation. Appending in this case can hit skb_put overflow conditions. Reject aggregation when the target skb tailroom cannot accommodate the new packet. The caller then falls back to creating a new forward packet instead of appending.

NVD


Products Associated with CVE-2026-31683

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Affected Versions

Linux: Linux: