1 files changed, 12 insertions, 0 deletions
diff --git a/src/sss_client/nss_mc_common.c b/src/sss_client/nss_mc_common.c
index 92f802db7..6cff2e1b9 100644
--- a/src/sss_client/nss_mc_common.c
+++ b/src/sss_client/nss_mc_common.c
@@ -60,6 +60,8 @@ errno_t sss_nss_check_header(struct sss_cli_mc_ctx *ctx)
     struct sss_mc_header h;
     bool copy_ok;
     int count;
+    int ret;
+    struct stat fdstat;
 
     /* retry barrier protected reading max 5 times then give up */
     for (count = 5; count > 0; count--) {
@@ -99,6 +101,16 @@ errno_t sss_nss_check_header(struct sss_cli_mc_ctx *ctx)
         }
     }
 
+    ret = fstat(ctx->fd, &fdstat);
+    if (ret == -1) {
+        return EIO;
+    }
+
+    if (fdstat.st_nlink == 0) {
+        /* memory cache was removed; we need to reinitialize it. */
+        return EINVAL;
+    }
+
     return 0;
 }