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net: consider option-length when parsing NIS domain

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When parsing option 40 (network information service domain) the
option length is in variable 'oplen' and not in 'size'.

Addresses-Coverity-ID: 492765 Uninitialized variables (UNINIT)
Fixes: 8ab388bfdb ("net: add support to parse the NIS domain for the dhcp options")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2024-04-23 09:09:44 +02:00 • committed by Tom Rini
parent 914b766a2a
commit e69b187486
1 changed files with 1 additions and 1 deletions
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2
net/bootp.c
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@ -886,7 +886,7 @@ static void dhcp_process_options(uchar *popt, uchar *end)
case 40: /* NIS Domain name */
if (net_nis_domain[0] == 0) {
size = truncate_sz("NIS Domain Name",
sizeof(net_nis_domain), size);
sizeof(net_nis_domain), oplen);
memcpy(&net_nis_domain, popt + 2, size);
net_nis_domain[size] = 0;
}