CVE-2025-21766

Summary

In the Linux kernel, the following vulnerability has been resolved:

ipv4: use RCU protection in __ip_rt_update_pmtu()

__ip_rt_update_pmtu() must use RCU protection to make sure the net structure it reads does not disappear.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < ce3c6165fce0f06305c806696882a3ad4b90e33faffected
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < ea07480b23225942208f1b754fea1e7ec486d37eaffected
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < 9b1766d1ff5fe496aabe9fc5f4e34e53f35c11c4affected
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < 4583748b65dee4d61bd50a2214715b4237bc152aaffected
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < a39f61d212d822b3062d7f70fa0588e50e55664eaffected
LinuxLinux2fbc6e89b2f1403189e624cabaf73e189c5e50c6 < 139512191bd06f1b496117c76372b2ce372c9a41affected
LinuxLinuxf415c264176e6095e9dee823e09c5bdd0ee0d337affected
LinuxLinux98776a365da509ad923083ae54b38ee521c52742affected
LinuxLinux860e2cc78c697c95bc749abb20047239fa1722eaaffected
LinuxLinux2b1be6c925cdf4638811765a9160796291494b89affected
LinuxLinux4.14.200 < 4.15affected
LinuxLinux4.19.148 < 4.20affected
LinuxLinux5.4.68 < 5.5affected
LinuxLinux5.8.12 < 5.9affected
LinuxLinux5.9affected
LinuxLinux0 < 5.9unaffected
LinuxLinux5.15.179 <= 5.15.*unaffected
LinuxLinux6.1.129 <= 6.1.*unaffected
LinuxLinux6.6.79 <= 6.6.*unaffected
LinuxLinux6.12.16 <= 6.12.*unaffected
LinuxLinux6.13.4 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

Additional References

References