I assume that wouldn't help here but I could easily be wrong. (Assuming if you're asking if SELinux would block this exploit).

To even get the su binary on Android you have to patch the OS. So this exploit can't work on Android. Because there is no su binary to target.

Update: Just tried it on Termux and as expected even creating an AF_ALG socket requires root access.

The specific exploit payload for the POC relies on a su binary. The vuln is ambivalent and other non-su paths will exist.

Of course, but it does not matter as the entire AF_ALG module is forbidden by SELinux anyway (on Android).

That's fine and a very separate reason why it would not be exploitable, also assuming that the module is not just compiled in since then loading it would be irrelevant.

selinux on enforcement mode did not mitigate the exploit when I tested today on fedora coreos :(