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-rw-r--r--nptl/tst-cancel17.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/nptl/tst-cancel17.c b/nptl/tst-cancel17.c
index fb89292070..eedd28e792 100644
--- a/nptl/tst-cancel17.c
+++ b/nptl/tst-cancel17.c
@@ -333,6 +333,22 @@ do_test (void)
 
   puts ("early cancellation succeeded");
 
+  if (ap == &a2)
+    {
+      /* The aio_read(&a) was not canceled because the read request was
+	 already in progress. In the meanwhile aio_write(ap) wrote something
+	 to the pipe and the read request either has already been finished or
+	 is able to read the requested byte.
+	 Wait for the read request before returning from this function because
+	 the return value and error code from the read syscall will be written
+	 to the struct aiocb a, which lies on the stack of this function.
+	 Otherwise the stack from subsequent function calls - e.g. _dl_fini -
+	 will be corrupted, which can lead to undefined behaviour like a
+	 segmentation fault.  */
+      const struct aiocb *l[1] = { &a };
+      TEMP_FAILURE_RETRY (aio_suspend(l, 1, NULL));
+    }
+
   return 0;
 }