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351050ecd6
syzkaller had no problem to trigger a deadlock, attaching a KCM socket
to another one (or itself). (original syzkaller report was a very
confusing lockdep splat during a sendmsg())
It seems KCM claims to only support TCP, but no enforcement is done,
so we might need to add additional checks.
Fixes:
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.. | ||
kcmproc.c | ||
kcmsock.c | ||
Kconfig | ||
Makefile |