diff options
| author | Eric Dumazet <[email protected]> | 2017-10-05 09:50:07 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <[email protected]> | 2017-10-06 13:04:05 +0000 |
| commit | e466af75c074e76107ae1cd5a2823e9c61894ffb (patch) | |
| tree | d89583ebd5b7d23418dbc0d44472f60eecd66ccd /net/unix/af_unix.c | |
| parent | netfilter: nf_tables: do not dump chain counters if not enabled (diff) | |
| download | kernel-e466af75c074e76107ae1cd5a2823e9c61894ffb.tar.gz kernel-e466af75c074e76107ae1cd5a2823e9c61894ffb.zip | |
netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
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 <[email protected]>
Cc: Willem de Bruijn <[email protected]>
Acked-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions