diff --git a/qa/valgrind.supp b/qa/valgrind.supp
index d7e4532dffd..1a73a84e5a8 100644
--- a/qa/valgrind.supp
+++ b/qa/valgrind.supp
@@ -183,6 +183,22 @@
    obj:*tcmalloc*
    fun:*GetStackTrace*
 }
+{
+   tcmalloc: param points to uninit bytes under call_init (jammy)
+   Memcheck:Param
+   write(buf)
+   fun:syscall
+   obj:*libunwind*
+   obj:*libunwind*
+   obj:*libunwind*
+   obj:*libunwind*
+   fun:_ULx86_64_step
+   obj:*tcmalloc*
+   obj:*tcmalloc*
+   obj:*tcmalloc*
+   obj:*tcmalloc*
+   fun:call_init.part.0
+}
 {
 	tcmalloc: string
 	Memcheck:Leak