patches/0067-dirmngr-Fix-possible-null-reference.patch

   1 From: NIIBE Yutaka <gniibe@fsij.org>
   2 Date: Wed, 12 Apr 2017 15:58:11 +0900
   3 Subject: dirmngr: Fix possible null reference.
   4
   5 * dirmngr/dns.c (dns_error_t dns_trace_fput): Check NULL.
   6
   7 Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
   8 (cherry picked from commit 7ae1857c90ab43ad9e31f0fb6dbd37f25cc37278)
   9 ---
  10  dirmngr/dns.c | 5 +++--
  11  1 file changed, 3 insertions(+), 2 deletions(-)
  12
  13 diff --git a/dirmngr/dns.c b/dirmngr/dns.c
  14 index 869e7ed..ebfd4c3 100644
  15 --- a/dirmngr/dns.c
  16 +++ b/dirmngr/dns.c
  17 @@ -4594,8 +4594,9 @@ dns_error_t dns_trace_fput(const struct dns_trace_event *te, const void *data, s
  18
  19         if (fwrite(&tmp, 1, headsize, fp) < headsize)
  20                 return errno;
  21 -       if (fwrite(data, 1, datasize, fp) < datasize)
  22 -               return errno;
  23 +       if (data)
  24 +               if (fwrite(data, 1, datasize, fp) < datasize)
  25 +                       return errno;
  26         if (fflush(fp))
  27                 return errno;
  28