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-rw-r--r--winsup/cygwin/syscalls.cc17
1 files changed, 13 insertions, 4 deletions
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index d15384260..b3253473b 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -2076,9 +2076,9 @@ seteuid32 (__uid32_t uid)
user_groups &groups = cygheap->user.groups;
HANDLE ptok, new_token = INVALID_HANDLE_VALUE;
struct passwd * pw_new;
- PSID origpsid, psid2 = NO_SID;
- BOOL token_is_internal;
-
+ cygpsid origpsid, psid2 (NO_SID);
+ BOOL token_is_internal, issamesid;
+
pw_new = internal_getpwuid (uid);
if (!wincap.has_security () && pw_new)
goto success_9x;
@@ -2154,6 +2154,9 @@ seteuid32 (__uid32_t uid)
}
else if (new_token != ptok)
{
+ /* Avoid having HKCU use default user */
+ load_registry_hive (usersid);
+
/* Try setting owner to same value as user. */
if (!SetTokenInformation (new_token, TokenOwner,
&usersid, sizeof usersid))
@@ -2168,10 +2171,16 @@ seteuid32 (__uid32_t uid)
}
CloseHandle (ptok);
+ issamesid = (usersid == (psid2 = cygheap->user.sid ()));
cygheap->user.set_sid (usersid);
cygheap->user.current_token = new_token == ptok ? INVALID_HANDLE_VALUE
- : new_token;
+ : new_token;
+ if (!issamesid) /* MS KB 199190 */
+ RegCloseKey(HKEY_CURRENT_USER);
cygheap->user.reimpersonate ();
+ if (!issamesid)
+ user_shared_initialize ();
+
success_9x:
cygheap->user.set_name (pw_new->pw_name);
myself->uid = uid;