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BugFix: Fix issue #670, Contributed by Enna1

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This commit is contained in:
Nick Peng
2021-01-09 12:19:07 +08:00
parent ccd0f203fb
commit 4e5248ebf3
1 changed files with 1 additions and 1 deletions
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src/dns.c
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@@ -1363,7 +1363,7 @@ static int _dns_decode_opt_ecs(struct dns_context *context, struct dns_opt_ecs *
len = (ecs->source_prefix / 8); len = (ecs->source_prefix / 8);
len += (ecs->source_prefix % 8 > 0) ? 1 : 0; len += (ecs->source_prefix % 8 > 0) ? 1 : 0;
if (_dns_left_len(context) < len) { if (_dns_left_len(context) < len || len > sizeof(ecs->addr)) {
return -1; return -1;
} }