In the Linux kernel, the following vulnerability has been resolved:
ipv4: use RCU protection in _iprtupdatepmtu()
_iprtupdatepmtu() must use RCU protection to make sure the net structure it reads does not disappear.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21766.json",
"cna_assigner": "Linux"
}