Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.38, < 5.10.253 |
References
- https://git.kernel.org/stable/c/0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1Patch
- https://git.kernel.org/stable/c/0d4aef630be9d5f9c1227d07669c26c4383b5ad0Patch
- https://git.kernel.org/stable/c/0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8Patch
- https://git.kernel.org/stable/c/1ada20331f2df2a942d6b83ae1f04a304b642e2aPatch
- https://git.kernel.org/stable/c/67176c96f325837b0bb3e9538ca2eba414f447d8Patch
- https://git.kernel.org/stable/c/6755347c5f9bdd44dee80f692208b056fcd40a52Patch
- https://git.kernel.org/stable/c/6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075Patch
- https://git.kernel.org/stable/c/eda89a1bae0602aec8314ced299bb243b9f9aeefPatch
FAQ
What is CVE-2026-31683?
CVE-2026-31683 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...
How severe is CVE-2026-31683?
CVE-2026-31683 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31683?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.