diff -Naur sssd-2.8.2/src/sss_client/common.c sssd-2.8.2-b/src/sss_client/common.c
--- sssd-2.8.2/src/sss_client/common.c	2023-03-28 11:25:28.000000000 +0800
+++ sssd-2.8.2-b/src/sss_client/common.c	2023-03-28 11:26:09.000000000 +0800
@@ -663,22 +663,27 @@
                                             const char *socket_name,
                                             int timeout)
 {
-    static pid_t mypid;
-    struct stat mysb;
+    static pid_t mypid_s;
+    static ino_t myself_ino;
+    struct stat mypid_sb, myself_sb;
+    pid_t mypid_d;
     int mysd;
     int ret;
 
-    if (getpid() != mypid) {
-        ret = fstat(sss_cli_sd, &mysb);
+    ret = lstat("/proc/self/", &myself_sb);
+    mypid_d = getpid();
+    if (mypid_d != mypid_s || (ret == 0 && myself_sb.st_ino != myself_ino)) {
+        ret = fstat(sss_cli_sd, &mypid_sb);
         if (ret == 0) {
-            if (S_ISSOCK(mysb.st_mode) &&
-                mysb.st_dev == sss_cli_sb.st_dev &&
-                mysb.st_ino == sss_cli_sb.st_ino) {
+            if (S_ISSOCK(mypid_sb.st_mode) &&
+                mypid_sb.st_dev == sss_cli_sb.st_dev &&
+                mypid_sb.st_ino == sss_cli_sb.st_ino) {
                 sss_cli_close_socket();
             }
         }
         sss_cli_sd = -1;
-        mypid = getpid();
+        mypid_s = mypid_d;
+        myself_ino = myself_sb.st_ino;
     }
 
     /* check if the socket has been closed on the other side */