diff options
| author | Richard Weinberger <richard@nod.at> | 2017-04-01 00:41:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-20 14:27:00 +0200 |
| commit | a2d5dcf338ea85c939789591c51c74e692aa2855 (patch) | |
| tree | f17bdee6d57173054a524d67ffa8e90fa2732b9c /tools/perf/scripts/python | |
| parent | b8cd9dd513bf944f5070203f3c0063d9796e4221 (diff) | |
um: Fix PTRACE_POKEUSER on x86_64
commit 9abc74a22d85ab29cef9896a2582a530da7e79bf upstream.
This is broken since ever but sadly nobody noticed.
Recent versions of GDB set DR_CONTROL unconditionally and
UML dies due to a heap corruption. It turns out that
the PTRACE_POKEUSER was copy&pasted from i386 and assumes
that addresses are 4 bytes long.
Fix that by using 8 as address size in the calculation.
Reported-by: jie cao <cj3054@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions