glibc/glibc-rh168253-getaddrinfo-malloc-canonname-strdup-1.patch
Florian Weimer 8597553f96 Rebase DNS stub resolver to the glibc 2.26 version
- Support an arbitrary number of search domains (#168253)
- Detect and apply /etc/resolv.conf changes in libresolv (#1374239)
- CVE-2015-5180: DNS stub resolver crash with crafted record type (#1251403)
2017-10-11 14:41:27 +02:00

40 lines
1.3 KiB
Diff

commit 6257fcfd58479f6b7ae0fdde045b9ff144d543da
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jun 2 16:35:13 2017 +0200
getaddrinfo: Fix localplt failure involving strdup
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index daa742c260e667a7..0e92221853dd73b1 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -286,9 +286,16 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
} \
*pat = addrmem; \
\
- if (localcanon != NULL && canon == NULL) \
- canon = strdupa (localcanon); \
- \
+ if (localcanon != NULL && canon == NULL) \
+ { \
+ canonbuf = __strdup (localcanon); \
+ if (canonbuf == NULL) \
+ { \
+ result = -EAI_SYSTEM; \
+ goto free_and_return; \
+ } \
+ canon = canonbuf; \
+ } \
if (_family == AF_INET6 && *pat != NULL) \
got_ipv6 = true; \
} \
@@ -330,7 +337,7 @@ getcanonname (service_user *nip, struct gaih_addrtuple *at, const char *name)
string. */
s = (char *) name;
}
- return strdup (name);
+ return __strdup (name);
}
static int