diff --git a/glibc.spec b/glibc.spec
index 890b0df..e738c50 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,4 +1,4 @@
-%define glibcsrcdir glibc-2.34.9000-275-gdb6c4935fa
+%define glibcsrcdir glibc-2.34.9000-278-g0bd356df1a
 %define glibcversion 2.34.9000
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
@@ -151,7 +151,7 @@ end \
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 18%{?dist}
+Release: 19%{?dist}
 
 # In general, GPLv2+ is used by programs, LGPLv2+ is used for
 # libraries.
@@ -2260,6 +2260,13 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Wed Nov 10 2021 Arjun Shankar <arjun@redhat.com> - 2.34.9000-19
+- Auto-sync with upstream branch master,
+  commit 0bd356df1afb0591470499813d4ebae9bcedd6a6:
+- Remove the unused +mkdep/+make-deps/s-proto.S/s-proto-cancel.S
+- Fix build a chec failures after b05fae4d8e34
+- elf: Use the minimal malloc on tunables_strdup
+
 * Mon Nov 08 2021 Arjun Shankar <arjun@redhat.com> - 2.34.9000-18
 - Auto-sync with upstream branch master,
   commit db6c4935fae6005d46af413b32aa92f4f6059dce:
diff --git a/sources b/sources
index db8e5e6..c2498fb 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.34.9000-275-gdb6c4935fa.tar.xz) = b9d499de66f0e6483850041fe20d209c2b353725d4b9c1f9c995fbf600a24e0c0e5ff95bcf1c0d4e648e24446900fd6fd9e937fbab57e07593c86adfd267dfca
+SHA512 (glibc-2.34.9000-278-g0bd356df1a.tar.xz) = d1f39764e96ef3b36512820bcf96eba91d3a02399cc73d7f860c8d394b9495a8678f0f0fbef36f2b80382ba46f9c4febf8a3ddf16afe662e5f9879b331394b1d