Hello, CVE-2019-12381 was fixed in the upstream linux kernel with the commit :- * 425aa0e1d015 ("ip_sockglue: Fix missing-check bug in ip_ra_control()") Could the patch be applied in order to v4.19.y, v4.14.y, v4.9.y and v4.4.y ? Tests run: * Chrome OS tryjobs Thanks, - Zubin