From 523d9b965df65bd3ad52863abc817724d7a35f32 Mon Sep 17 00:00:00 2001 From: Alexey Izbyshev Date: Sat, 25 Feb 2023 18:41:32 +0300 Subject: fix potential read past end of buffer in getnameinfo host name lookup This is completely analoguous to commit 633183b5d1c2. Similar code called from __lookup_name is not affected because it checks that the line contains the host name surrounded by blanks. --- src/network/getnameinfo.c | 1 + 1 file changed, 1 insertion(+) (limited to 'src/network') diff --git a/src/network/getnameinfo.c b/src/network/getnameinfo.c index 080d3c06..7abe0fa9 100644 --- a/src/network/getnameinfo.c +++ b/src/network/getnameinfo.c @@ -58,6 +58,7 @@ static void reverse_hosts(char *buf, const unsigned char *a, unsigned scopeid, i if ((p=strchr(line, '#'))) *p++='\n', *p=0; for (p=line; *p && !isspace(*p); p++); + if (!*p) continue; *p++ = 0; if (__lookup_ipliteral(&iplit, line, AF_UNSPEC)<=0) continue; -- cgit 1.4.1