On Mon, 22 May 2023 15:19:17 +0200 Simon Horman wrote: > > TLI, that AF_UNIX can be a kernel module... > > I'm really not excited in exposing pidfd_prepare() to non-core kernel > > code. Would it be possible to please simply refuse SO_PEERPIDFD and > > SCM_PIDFD if AF_UNIX is compiled as a module? I feel that this must be > > super rare because it risks breaking even simplistic userspace. > > It occurs to me that it may be simpler to not allow AF_UNIX to be a module. > But perhaps that breaks something for someone... Both of the two options (disable the feature with unix=m, make unix bool) could lead to breakage, I reckon at least the latter makes the breakage more obvious? So not allowing AF_UNIX as a module gets my vote as well. A mechanism of exporting symbols for core/internal use only would find a lot of use in networking :(
