In the Linux kernel, the following vulnerability has been resolved:
bpf: Check validity of link->type in bpflinkshow_fdinfo()
If a newly-added link type doesn't invoke BPFLINKTYPE(), accessing bpflinktype_strs[link->type] may result in an out-of-bounds access.
To spot such missed invocations early in the future, checking the validity of link->type in bpflinkshow_fdinfo() and emitting a warning when such invocations are missed.