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| author | ume <ume@FreeBSD.org> | 2015-12-17 16:08:28 +0000 |
|---|---|---|
| committer | ume <ume@FreeBSD.org> | 2015-12-17 16:08:28 +0000 |
| commit | 9e838a130f7515d8e377b7627d6a42db0e14158f (patch) | |
| tree | 4259bec354a0bb4f9fc1497e401ec0e7bd1b0cd4 /lib | |
| parent | 5952006acb1f0577732ac15f481976227292807f (diff) | |
| download | FreeBSD-src-9e838a130f7515d8e377b7627d6a42db0e14158f.zip FreeBSD-src-9e838a130f7515d8e377b7627d6a42db0e14158f.tar.gz | |
MFC r292059:
The calls to RES_SET_H_ERRNO() macro on error paths wind up
dereferencing an uninitialized res.
PR: 202142
Submitted by: Sean Boudreau
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/net/getaddrinfo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/libc/net/getaddrinfo.c b/lib/libc/net/getaddrinfo.c index b4c1a33..1651279 100644 --- a/lib/libc/net/getaddrinfo.c +++ b/lib/libc/net/getaddrinfo.c @@ -2207,6 +2207,8 @@ _dns_getaddrinfo(void *rv, void *cb_data, va_list ap) memset(&sentinel, 0, sizeof(sentinel)); cur = &sentinel; + res = __res_state(); + buf = malloc(sizeof(*buf)); if (!buf) { RES_SET_H_ERRNO(res, NETDB_INTERNAL); @@ -2253,7 +2255,6 @@ _dns_getaddrinfo(void *rv, void *cb_data, va_list ap) return NS_UNAVAIL; } - res = __res_state(); if ((res->options & RES_INIT) == 0 && res_ninit(res) == -1) { RES_SET_H_ERRNO(res, NETDB_INTERNAL); free(buf); |
