From: Oliver Kurth <okurth@vmware.com>
Date: Fri, 2 Aug 2019 18:07:21 +0000 (-0700)
Subject: Fix crash in nicinfo/nicInfoPosix.c:PrintResolverNSInfo
X-Git-Tag: stable-11.1.0~278
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49dc92d4f417c07ab370b390fe3459bce8282bf0;p=thirdparty%2Fopen-vm-tools.git

Fix crash in nicinfo/nicInfoPosix.c:PrintResolverNSInfo

SIGSEGV trying to access resp->_u._ext.nsaddrs[i]->sin6_family in
PrintResolverNSInfo.

Fix: zero out the struct __res_state memory before calling res_ninit().
---

diff --git a/open-vm-tools/lib/nicInfo/nicInfoPosix.c b/open-vm-tools/lib/nicInfo/nicInfoPosix.c
index 3fa91053f..e661993b3 100644
--- a/open-vm-tools/lib/nicInfo/nicInfoPosix.c
+++ b/open-vm-tools/lib/nicInfo/nicInfoPosix.c
@@ -838,6 +838,7 @@ RecordResolverInfo(NicInfoV3 *nicInfo)  // OUT
    char **s;
    struct __res_state res;
 
+   memset(&res, 0, sizeof res);
    if (res_ninit(&res) == -1) {
       g_warning("%s: Resolver res_init failed.\n", __FUNCTION__);
       return FALSE;