]> git.baikalelectronics.ru Git - kernel.git/commit
kcov: support compat processes
authorDmitry Vyukov <dvyukov@google.com>
Fri, 8 Sep 2017 23:17:35 +0000 (16:17 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 9 Sep 2017 01:26:51 +0000 (18:26 -0700)
commita1257f45c070715e2bc97c38b35cba3b0fe837e2
tree65184563486601b0ef131c00a24793dc4c721fa8
parent14d2025e1c3d15ec9ad05a5a59c9574751216b55
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>
kernel/kcov.c