diff --git a/sandboxed_api/sandbox2/policybuilder.cc b/sandboxed_api/sandbox2/policybuilder.cc
index 3878c80..5e562f3 100644
--- a/sandboxed_api/sandbox2/policybuilder.cc
+++ b/sandboxed_api/sandbox2/policybuilder.cc
@@ -324,6 +324,9 @@ PolicyBuilder& PolicyBuilder::AllowLlvmSanitizers() {
     // Sanitizers may try color output. For example:
     // https://github.com/llvm/llvm-project/blob/87dd3d350c4ce0115b2cdf91d85ddd05ae2661aa/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp#L157
     OverridableBlockSyscallWithErrno(__NR_ioctl, EPERM);
+    // https://github.com/llvm/llvm-project/blob/9aa39481d9eb718e872993791547053a3c1f16d5/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp#L150
+    // https://sourceware.org/git/?p=glibc.git;a=blob;f=nptl/pthread_getattr_np.c;h=de7edfa0928224eb8375e2fe894d6677570fbb3b;hb=HEAD#l188
+    OverridableBlockSyscallWithErrno(__NR_sched_getaffinity, EPERM);
     // https://github.com/llvm/llvm-project/blob/02c2b472b510ff55679844c087b66e7837e13dc2/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp#L434
 #ifdef __NR_readlink
     OverridableBlockSyscallWithErrno(__NR_readlink, ENOENT);