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| author |   Richard Weinberger <richard@nod.at> | 2017-04-01 00:41:57 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2017-05-03 22:35:31 +0200 |
| commit | 9abc74a22d85ab29cef9896a2582a530da7e79bf (patch) | |
| tree | 635cd7bee778f32723b10fdfaf8df73da7ba3245 /lib/debugobjects.c | |
| parent | um: Set number of CPUs (diff) | |
| download | wireguard-linux-9abc74a22d85ab29cef9896a2582a530da7e79bf.tar.xz wireguard-linux-9abc74a22d85ab29cef9896a2582a530da7e79bf.zip | |
um: Fix PTRACE_POKEUSER on x86_64
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.
Cc: <stable@vger.kernel.org>
Reported-by: jie cao <cj3054@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions