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-rw-r--r--sysdeps/unix/sysv/linux/shmat.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/shmat.c b/sysdeps/unix/sysv/linux/shmat.c
index 2ac07f21d0..070b00c30f 100644
--- a/sysdeps/unix/sysv/linux/shmat.c
+++ b/sysdeps/unix/sysv/linux/shmat.c
@@ -33,5 +33,6 @@ shmat (shmid, shmaddr, shmflg)
   unsigned long raddr;
 
   retval = __ipc (IPCOP_shmat, shmid, shmflg, (int) &raddr, shmaddr);
-  return retval < 0 ? (void *) retval : (void *) raddr;
+  return ((unsigned long int) retval > -(unsigned long int) SHMLBA
+	  ? (void *) retval : (void *) raddr);
 }