In the function send_dhcp_packet(), added an error check for the return value of grub_netbuff_push().
Fixes: CID 404614 Signed-off-by: Alec Brown <alec.r.br...@oracle.com> --- grub-core/net/bootp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c index 7d31dba97..abe45ef7b 100644 --- a/grub-core/net/bootp.c +++ b/grub-core/net/bootp.c @@ -583,7 +583,9 @@ send_dhcp_packet (struct grub_net_network_level_interface *iface) grub_memcpy (&pack->mac_addr, &iface->hwaddress.mac, 6); - grub_netbuff_push (nb, sizeof (*udph)); + err = grub_netbuff_push (nb, sizeof (*udph)); + if (err) + goto out; udph = (struct udphdr *) nb->data; udph->src = grub_cpu_to_be16_compile_time (68); -- 2.27.0 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
