illumos illumos-gate before 676abcb has a stack buffer overflow in /dev/net, leading to privilege escalation via a stat on a long file name in /dev/net.
https://github.com/illumos/illumos-gate/tree/16b76d3cb933ff92018a2a75594449010192eacb
http://www.openwall.com/lists/oss-security/2023/09/14/4