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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-07 15:33:42 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-07 15:33:42 +0100 |
| commit | 74d9f1ba37010face4bd1449df4d60dd84450b06 (patch) | |
| tree | ec6b078d67826b01c69ad533376be7c763596bd2 /networking/udhcp/dhcpc.c | |
| parent | b80bdeba0248e2742cf801e7429d5d7aad69d26d (diff) | |
| download | busybox-74d9f1ba37010face4bd1449df4d60dd84450b06.tar.gz | |
udhcpc: when decoding DHCP_SUBNET, ensure it is 4 bytes long
function old new delta
udhcp_run_script 795 801 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/dhcpc.c')
| -rw-r--r-- | networking/udhcp/dhcpc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index 5b3fd531c..dcec8cdfd 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -531,7 +531,7 @@ static char **fill_envp(struct dhcp_packet *packet) temp = udhcp_get_option(packet, code); *curr = xmalloc_optname_optval(temp, &dhcp_optflags[i], opt_name); putenv(*curr++); - if (code == DHCP_SUBNET) { + if (code == DHCP_SUBNET && temp[-OPT_DATA + OPT_LEN] == 4) { /* Subnet option: make things like "$ip/$mask" possible */ uint32_t subnet; move_from_unaligned32(subnet, temp); |