diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/gethostid.c | 4 |
3 files changed, 8 insertions, 2 deletions
@@ -1,3 +1,8 @@ +2018-09-20 Mingli Yu <Mingli.Yu@windriver.com> + + * sysdeps/unix/sysv/linux/gethostid.c (gethostid): Check for NULL + value from gethostbyname_r. + 2018-09-06 Stefan Liebler <stli@linux.ibm.com> * sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute): @@ -13,6 +13,7 @@ The following bugs are resolved with this release: [23521] nss_files aliases database file stream leak [23538] pthread_cond_broadcast: Fix waiters-after-spinning case [23578] regex: Fix memory overread in re_compile_pattern + [23679] gethostid: Missing NULL check for gethostbyname_r result Version 2.28 diff --git a/sysdeps/unix/sysv/linux/gethostid.c b/sysdeps/unix/sysv/linux/gethostid.c index 2e20f034dc..ee0190e7f9 100644 --- a/sysdeps/unix/sysv/linux/gethostid.c +++ b/sysdeps/unix/sysv/linux/gethostid.c @@ -102,12 +102,12 @@ gethostid (void) { int ret = __gethostbyname_r (hostname, &hostbuf, tmpbuf.data, tmpbuf.length, &hp, &herr); - if (ret == 0) + if (ret == 0 && hp != NULL) break; else { /* Enlarge the buffer on ERANGE. */ - if (herr == NETDB_INTERNAL && errno == ERANGE) + if (ret != 0 && herr == NETDB_INTERNAL && errno == ERANGE) { if (!scratch_buffer_grow (&tmpbuf)) return 0; |