From: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> Check that IP packet length from the header is not bogus.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> --- /** Email created from pull request 243 (lumag:ipsec-packet-impl-3) ** https://github.com/Linaro/odp/pull/243 ** Patch: https://github.com/Linaro/odp/pull/243.patch ** Base sha: a908a4dead95321e84d6a8a23de060051dcd8969 ** Merge commit sha: e8722a0cdda227e01e7d308573aec08112d3c5b0 **/ platform/linux-generic/odp_ipsec.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/platform/linux-generic/odp_ipsec.c b/platform/linux-generic/odp_ipsec.c index 524ed728f..49bacae01 100644 --- a/platform/linux-generic/odp_ipsec.c +++ b/platform/linux-generic/odp_ipsec.c @@ -300,6 +300,11 @@ static ipsec_sa_t *ipsec_in_single(odp_packet_t pkt, ipsec_offset = ip_offset + ip_hdr_len; + if (odp_be_to_cpu_16(ip->tot_len) + ip_offset > odp_packet_len(pkt)) { + status->error.alg = 1; + goto err; + } + if (_ODP_IPV4HDR_IS_FRAGMENT(odp_be_to_cpu_16(ip->frag_offset))) { status->error.proto = 1; goto err; @@ -648,6 +653,11 @@ static ipsec_sa_t *ipsec_out_single(odp_packet_t pkt, goto err; } + if (odp_be_to_cpu_16(ip->tot_len) + ip_offset > odp_packet_len(pkt)) { + status->error.alg = 1; + goto err; + } + if (ODP_IPSEC_MODE_TUNNEL == ipsec_sa->mode) { _odp_ipv4hdr_t out_ip; uint16_t tot_len;
