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| author | Dmitry Vyukov <dvyukov@google.com> | 2017-12-28 09:48:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-25 11:03:36 +0100 |
| commit | 9626ac658a19f9863da04c0727e0b5c32175cc04 (patch) | |
| tree | 391eb97a2e082936e122895db7c26bdebeb65781 /lib/mpi/mpih-cmp.c | |
| parent | 9435c32b3763c829abf245b30c28ef3e5087907a (diff) | |
netfilter: x_tables: fix int overflow in xt_alloc_table_info()
commit 889c604fd0b5f6d3b8694ade229ee44124de1127 upstream.
syzkaller triggered OOM kills by passing ipt_replace.size = -1
to IPT_SO_SET_REPLACE. The root cause is that SMP_ALIGN() in
xt_alloc_table_info() causes int overflow and the size check passes
when it should not. SMP_ALIGN() is no longer needed leftover.
Remove SMP_ALIGN() call in xt_alloc_table_info().
Reported-by: syzbot+4396883fa8c4f64e0175@syzkaller.appspotmail.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/mpi/mpih-cmp.c')
0 files changed, 0 insertions, 0 deletions