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| author | Eric Dumazet <edumazet@google.com> | 2017-10-05 02:50:07 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-19 22:48:59 +0200 |
| commit | f9845426f4427eb0031b562dfd5c0ffe99cba644 (patch) | |
| tree | b9781aac456ff593f24f18a01135aaa086a8c5cd /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | a3b92ee6fc171d7c9d9b6b829b7fef169210440c (diff) | |
netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
commit e466af75c074e76107ae1cd5a2823e9c61894ffb upstream.
syzkaller reports an out of bound read in strlcpy(), triggered
by xt_copy_counters_from_user()
Fix this by using memcpy(), then forcing a zero byte at the last position
of the destination, as Florian did for the non COMPAT code.
Fixes: d7591f0c41ce ("netfilter: x_tables: introduce and use xt_copy_counters_from_user")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions