From ffcbc70b9a4a1e54ede828c649fa6e91aaceeaa3 Mon Sep 17 00:00:00 2001 From: Andrei Vagin Date: Thu, 13 Jul 2023 16:43:51 -0700 Subject: [PATCH] systrap: don't change an fpu state from the stub code syshandler doesn't expect that the current fpu state can be changed. Reported-by: syzbot+d51c9b676e1eebdfde0a@syzkaller.appspotmail.com PiperOrigin-RevId: 547964140 --- pkg/sentry/platform/systrap/sysmsg/build.bzl | 1 + 1 file changed, 1 insertion(+) diff --git a/pkg/sentry/platform/systrap/sysmsg/build.bzl b/pkg/sentry/platform/systrap/sysmsg/build.bzl index 277dbf8b8..ec4886f78 100644 --- a/pkg/sentry/platform/systrap/sysmsg/build.bzl +++ b/pkg/sentry/platform/systrap/sysmsg/build.bzl @@ -23,6 +23,7 @@ def cc_pie_obj(name, srcs, outs): ) + " -fno-builtin " + "-ffreestanding " + + "-mgeneral-regs-only " + "-g " + "-Wa,--noexecstack " + "-fno-asynchronous-unwind-tables " +