shadow-utils/SOURCES/shadow-4.6-usermod-crash.patch

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2019-05-07 10:04:26 +00:00
diff -up shadow-4.6/libmisc/prefix_flag.c.usermod-crash shadow-4.6/libmisc/prefix_flag.c
--- shadow-4.6/libmisc/prefix_flag.c.usermod-crash 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/libmisc/prefix_flag.c 2018-05-28 15:14:10.642302440 +0200
@@ -319,6 +319,7 @@ extern struct group *prefix_getgr_nam_gi
{
long long int gid;
char *endptr;
+ struct group *g;
if (NULL == grname) {
return NULL;
@@ -333,7 +334,8 @@ extern struct group *prefix_getgr_nam_gi
&& (gid == (gid_t)gid)) {
return prefix_getgrgid ((gid_t) gid);
}
- return prefix_getgrnam (grname);
+ g = prefix_getgrnam (grname);
+ return g ? __gr_dup(g) : NULL;
}
else
return getgr_nam_gid(grname);
diff -up shadow-4.6/src/usermod.c.usermod-crash shadow-4.6/src/usermod.c
--- shadow-4.6/src/usermod.c.usermod-crash 2018-05-28 15:12:37.920332763 +0200
+++ shadow-4.6/src/usermod.c 2018-05-28 15:15:50.337422470 +0200
@@ -1276,11 +1276,13 @@ static void process_flags (int argc, cha
prefix_user_home = xmalloc(len);
wlen = snprintf(prefix_user_home, len, "%s/%s", prefix, user_home);
assert (wlen == (int) len -1);
+ if (user_newhome) {
+ len = strlen(prefix) + strlen(user_newhome) + 2;
+ prefix_user_newhome = xmalloc(len);
+ wlen = snprintf(prefix_user_newhome, len, "%s/%s", prefix, user_newhome);
+ assert (wlen == (int) len -1);
+ }
- len = strlen(prefix) + strlen(user_newhome) + 2;
- prefix_user_newhome = xmalloc(len);
- wlen = snprintf(prefix_user_newhome, len, "%s/%s", prefix, user_newhome);
- assert (wlen == (int) len -1);
}
else {
prefix_user_home = user_home;