diff --git a/glibc.spec b/glibc.spec
index 507038b..00c0922 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,4 +1,4 @@
-%global glibcsrcdir glibc-2.35.9000-434-g8e28aa3a51
+%global glibcsrcdir glibc-2.35.9000-448-g8162147872
 %global glibcversion 2.35.9000
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
@@ -152,7 +152,7 @@ end}
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 16%{?dist}
+Release: 17%{?dist}
 
 # In general, GPLv2+ is used by programs, LGPLv2+ is used for
 # libraries.
@@ -2175,6 +2175,24 @@ update_gconv_modules_cache ()
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Tue May 10 2022 Patsy Griffin <patsy@redhat.com> - 2.35.9000-17
+- Auto-sync with upstream branch master,
+  commit 8162147872491bb5b48e91543b19c49a29ae6b6d.
+- nptl: Add backoff mechanism to spinlock loop
+- Linux: Implement a useful version of _startup_fatal
+- ia64: Always define IA64_USE_NEW_STUB as a flag macro
+- linux: Fix posix_spawn return code if clone fails (BZ#29109)
+- benchtests: Add wcrtomb microbenchmark
+- clock_settime/clock_gettime: Use __nonnull to avoid null pointer
+- clock_adjtime: Use __nonnull to avoid null pointer
+- ntp_xxxtimex: Use __nonnull to avoid null pointer
+- adjtimex/adjtimex64: Use __nonnull to avoid null pointer
+- hurd spawni: Fix reauthenticating closed fds
+- Linux: Define MMAP_CALL_INTERNAL
+- i386: Honor I386_USE_SYSENTER for 6-argument Linux system calls
+- i386: Remove OPTIMIZE_FOR_GCC_5 from Linux libc-do-syscall.S
+- manual: Clarify that abbreviations of long options are allowed
+
 * Tue May 03 2022 Florian Weimer <fweimer@redhat.com> - 2.35.9000-16
 - Auto-sync with upstream branch master,
   commit 8e28aa3a51bf0ef3683f2aed4b5b448744897b66:
diff --git a/sources b/sources
index 58c07d1..828e7dd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.35.9000-434-g8e28aa3a51.tar.xz) = 784541fae7083f1e9caa109bd7c2b2a64b530c2a491001426df4aedf61fc73b58a32a676747d56575f21197db2da44f70daf87725f4f0956d65b061f90452e01
+SHA512 (glibc-2.35.9000-448-g8162147872.tar.xz) = 01d7823ea6b6b1c39c4097a807c03610944be3184f5175789b75d48d7d808fe8eb589107901447858ed60747df3189ed89e6049e70b384fca457465a88733b06