Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netrom: fix double-free in nr_route_frame() In nr_route_frame(), old_skb is immediately freed without checking if nr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL, the caller function will free old_skb again, causing a double-free bug. Therefore, to prevent this, we need to modify it to check whether nr_neigh->ax25 is NULL before freeing old_skb.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12.1, < 5.10.249 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/25aab6bfc31017a7e52035b99aef5c2b6bde8ffbPatch
- https://git.kernel.org/stable/c/6e0110ea90313b7c0558a0b77038274a6821caf8Patch
- https://git.kernel.org/stable/c/7c48fdf2d1349bb54815b56fb012b9d577707708Patch
- https://git.kernel.org/stable/c/94d1a8bd08af1f4cc345c5c29f5db1ea72b8bb8cPatch
- https://git.kernel.org/stable/c/9f5fa78d9980fe75a69835521627ab7943cb3d67Patch
- https://git.kernel.org/stable/c/ba1096c315283ee3292765f6aea4cca15816c4f7Patch
- https://git.kernel.org/stable/c/bd8955337e3764f912f49b360e176d8aaecf7016Patch
FAQ
What is CVE-2026-23098?
CVE-2026-23098 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: netrom: fix double-free in nr_route_frame() In nr_route_frame(), old_skb is immediately freed without checking if nr_neigh->ax25 p...
How severe is CVE-2026-23098?
CVE-2026-23098 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23098?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.