Comment on: exploit doesn´t work with ipv6.disable=1

They're not required. In fact, they are explicitly ignored: https://github.com/v12-security/pocs/blob/7b5fc577c3d9ad386cc109b1eb7b02623f48ca13/fragnesia/fragnesia.c#L1300 I successfully exploited on the same system when booted without `ipv6.disable=1`. That was the only difference. I don´t know C but I can see the ipv6-specific code in the source, for example: https://github.com/v12-security/pocs/blob/7b5fc577c3d9ad386cc109b1eb7b02623f48ca13/fragnesia/fragnesia.c#L738 Try it for yourself: `sudo grubby --update-kernel=ALL --args="ipv6.disable=1"`, reboot, then run `./exp` with or without arguments.