--- qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/arm64_linux_syscalls.h
+++ qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/arm64_linux_syscalls.h
@@ -1063,4 +1063,8 @@
 #define __NR_memfd_create 279
 #endif
 
+#if !defined(__NR_membarrier)
+#define __NR_membarrier 283
+#endif
+
 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_ARM64_LINUX_SYSCALLS_H_

--- qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/arm_linux_syscalls.h
+++ qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/arm_linux_syscalls.h
@@ -1385,6 +1385,10 @@
 #define __NR_memfd_create (__NR_SYSCALL_BASE+385)
 #endif
 
+#if !defined(__NR_membarrier)
+#define __NR_membarrier (__NR_SYSCALL_BASE+389)
+#endif
+
 // ARM private syscalls.
 #if !defined(__ARM_NR_BASE)
 #define __ARM_NR_BASE (__NR_SYSCALL_BASE + 0xF0000)

--- qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/x86_32_linux_syscalls.h
+++ qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/x86_32_linux_syscalls.h
@@ -1422,5 +1422,9 @@
 #define __NR_memfd_create 356
 #endif
 
+#if !defined(__NR_membarrier)
+#define __NR_membarrier 375
+#endif
+
 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_X86_32_LINUX_SYSCALLS_H_
 
--- qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/x86_64_linux_syscalls.h
+++ qtwebengine/src/3rdparty/chromium//sandbox/linux/system_headers/x86_64_linux_syscalls.h
@@ -1290,5 +1290,9 @@
 #define __NR_memfd_create 319
 #endif
 
+#if !defined(__NR_membarrier)
+#define __NR_membarrier 324
+#endif
+
 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_X86_64_LINUX_SYSCALLS_H_
 
--- qtwebengine/src/3rdparty/chromium//sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+++ qtwebengine/src/3rdparty/chromium//sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
@@ -370,6 +370,7 @@
   switch (sysno) {
     case __NR_exit:
     case __NR_exit_group:
+    case __NR_membarrier:
     case __NR_wait4:
     case __NR_waitid:
 #if defined(__i386__)