libcgroup-0.41-fix-infinite-loop.patch

   1 From 62bab9d121d4fb416205f5ac53ad342184ae42b6 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Nikola=20Forr=C3=B3?= <nforro@redhat.com>
   3 Date: Tue, 8 Dec 2015 16:53:41 +0100
   4 Subject: [PATCH 2/6] api.c: fix infinite loop
   5
   6 If getgrnam or getpwuid functions failed, the program entered
   7 an infinite loop, because the rule pointer was never advanced.
   8 This is now fixed by updating the pointer before continuing
   9 to the next iteration.
  10 ---
  11  src/api.c | 8 ++++++--
  12  1 file changed, 6 insertions(+), 2 deletions(-)
  13
  14 diff --git a/src/api.c b/src/api.c
  15 index df90a6f..217d6c9 100644
  16 --- a/src/api.c
  17 +++ b/src/api.c
  18 @@ -2664,13 +2664,17 @@ static struct cgroup_rule *cgroup_find_matching_rule_uid_gid(uid_t uid,
  19                         /* Get the group data. */
  20                         sp = &(rule->username[1]);
  21                         grp = getgrnam(sp);
  22 -                       if (!grp)
  23 +                       if (!grp) {
  24 +                               rule = rule->next;
  25                                 continue;
  26 +                       }
  27
  28                         /* Get the data for UID. */
  29                         usr = getpwuid(uid);
  30 -                       if (!usr)
  31 +                       if (!usr) {
  32 +                               rule = rule->next;
  33                                 continue;
  34 +                       }
  35
  36                         /* If UID is a member of group, we matched. */
  37                         for (i = 0; grp->gr_mem[i]; i++) {
  38 --
  39 2.17.0
  40