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It starts with a patch on the GSS-based authentication (auth_gss.c) used within the linux kernel's SunRPC implementation. SunRPC is developed by Sun Microsystems as a part of their NFS implementation. That patch supposedly prevents a "double-free" bug.

Couple contributors quickly join, some argue there isn't a double-free bug and some say it should be fixed in a different way. However a major kernel developer Greg KH answered,

17/4/25, 5:15 am0 reposts0 likes

> Please stop submitting known-invalid patches. Your professor is playing around with the review process in order to achieve a paper in some strange and bizarre way. > > This is not ok, it is wasting our time, and we will have to report this, AGAIN, to your university...

However the OP claims those commits are auto-generated by some experimental tool and did not carry a bad intention. There is also some evidence that the same professor worked on static analysis tools.

However another maintainer mentions he took a look at OP's patches and 3 of 4 are seemed to be adding bugs. This creates a lot of suspicion on OP's intentions and they immediately decide to revert all PR's coming from UMN (the university of the researchers) and ban them from any contribution.