diff options
| author | Richard Weinberger <richard@nod.at> | 2017-04-01 00:41:57 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2017-08-26 02:14:45 +0100 |
| commit | 0d669d90c1697fead43aafd33417a3a93a7f477c (patch) | |
| tree | df479db22b28ca8bf203832aac1852a941041d5f /kernel/timer.c | |
| parent | 2080cbfa94d4cfabe95efa0c6bb52ec107dcbf67 (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: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'kernel/timer.c')
0 files changed, 0 insertions, 0 deletions