tree 65184563486601b0ef131c00a24793dc4c721fa8
parent 229cf16d3c8ac2e9b082c223fd0e619dc8f62cc1
author Dmitry Vyukov <dvyukov@google.com> 1504912655 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1504920411 -0700

kcov: support compat processes

Support compat processes in KCOV by providing compat_ioctl callback.
Compat mode uses the same ioctl callback: we have 2 commands that do not
use the argument and 1 that already checks that the arg does not overflow
INT_MAX.  This allows to use KCOV-guided fuzzing in compat processes.

Link: http://lkml.kernel.org/r/20170823100553.55812-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <syzkaller@googlegroups.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>