diff --git a/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-Port-to-Fedora-33.patch b/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-Port-to-Fedora-33.patch
new file mode 100644
index 0000000..37f6ea6
--- /dev/null
+++ b/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-Port-to-Fedora-33.patch
@@ -0,0 +1,48 @@
+From 15330adf7c2471fbaa6a0818db07078d81dbff97 Mon Sep 17 00:00:00 2001
+From: Bart Van Assche <bvanassche@acm.org>
+Date: Sat, 19 Sep 2020 08:08:59 -0700
+Subject: [PATCH] drd: Port to Fedora 33
+
+Apparently on Fedora 33 the POSIX thread functions exist in both libc and
+libpthread. Hence this patch that intercepts the pthread functions in
+libc. See also https://bugs.kde.org/show_bug.cgi?id=426144 .
+
+Signed-off-by: Bart Van Assche <bvanassche@acm.org>
+
+This patch was imported from the valgrind sourceware server
+(https://sourceware.org/git/?p=valgrind.git;a=commit;h=15330adf7c2471fbaa6a0818db07078d81dbff97)
+It was modified to remove the changes to the valgrind NEWS file,
+as these are difficult to maintain and don't impact the valgrind 
+code itself.
+
+Upstream-Status: Backport
+
+Signed-off-by: Stacy Gaikovaia <stacy.gaikovaia@windriver.com>
+---
+ drd/drd_pthread_intercepts.c | 9 +++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/drd/drd_pthread_intercepts.c b/drd/drd_pthread_intercepts.c
+index 58c45aaec..c2882e5ab 100644
+--- a/drd/drd_pthread_intercepts.c
++++ b/drd/drd_pthread_intercepts.c
+@@ -174,7 +174,16 @@ static int never_true;
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBC_SONAME,zf) argl_decl            \
+    { return implf argl; }
+ #else
++/*
++ * On Linux, intercept both the libc and the libpthread functions. At
++ * least glibc 2.32.9000 (Fedora 34) has an implementation of all pthread
++ * functions in both libc and libpthread. Older glibc versions only have an
++ * implementation of the pthread functions in libpthread.
++ */
+ #define PTH_FUNC(ret_ty, zf, implf, argl_decl, argl)                    \
++   ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBC_SONAME,zf) argl_decl;           \
++   ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBC_SONAME,zf) argl_decl            \
++   { return implf argl; }                                               \
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl;     \
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl      \
+    { return implf argl; }
+-- 
+2.25.1
+
diff --git a/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-musl-fix.patch b/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-musl-fix.patch
new file mode 100644
index 0000000..e96bf3c
--- /dev/null
+++ b/poky/meta/recipes-devtools/valgrind/valgrind/0001-drd-musl-fix.patch
@@ -0,0 +1,31 @@
+The changes in 0001-drd-Port-to-Fedora-33.patch break builds on musl. These
+need a __GLIBC__ guard to ensure musl builds continue to work.
+
+Upstream-Status: Pending
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: valgrind-3.16.1/drd/drd_pthread_intercepts.c
+===================================================================
+--- valgrind-3.16.1.orig/drd/drd_pthread_intercepts.c
++++ valgrind-3.16.1/drd/drd_pthread_intercepts.c
+@@ -180,6 +180,7 @@ static int never_true;
+  * functions in both libc and libpthread. Older glibc versions only have an
+  * implementation of the pthread functions in libpthread.
+  */
++#ifdef __GLIBC__
+ #define PTH_FUNC(ret_ty, zf, implf, argl_decl, argl)                    \
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBC_SONAME,zf) argl_decl;           \
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBC_SONAME,zf) argl_decl            \
+@@ -187,6 +188,12 @@ static int never_true;
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl;     \
+    ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl      \
+    { return implf argl; }
++#else
++#define PTH_FUNC(ret_ty, zf, implf, argl_decl, argl)                    \
++   ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl;     \
++   ret_ty VG_WRAP_FUNCTION_ZZ(VG_Z_LIBPTHREAD_SONAME,zf) argl_decl      \
++   { return implf argl; }
++#endif
+ #endif
+ 
+ /**
diff --git a/poky/meta/recipes-devtools/valgrind/valgrind_3.16.1.bb b/poky/meta/recipes-devtools/valgrind/valgrind_3.16.1.bb
index d4ca1a7..bcba55f 100644
--- a/poky/meta/recipes-devtools/valgrind/valgrind_3.16.1.bb
+++ b/poky/meta/recipes-devtools/valgrind/valgrind_3.16.1.bb
@@ -40,6 +40,8 @@
            file://s390x_vec_op_t.patch \
            file://0001-none-tests-fdleak_cmsg.stderr.exp-adjust-tmp-paths.patch \
            file://0001-memcheck-tests-Fix-timerfd-syscall-test.patch \
+           file://0001-drd-Port-to-Fedora-33.patch \
+           file://0001-drd-musl-fix.patch \
            "
 SRC_URI[md5sum] = "d1b153f1ab17cf1f311705e7a83ef589"
 SRC_URI[sha256sum] = "c91f3a2f7b02db0f3bc99479861656154d241d2fdb265614ba918cc6720a33ca"