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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-09 23:23:54 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-23 11:14:08 +0000 |
| commit | f6b3c49256edd4f402393a1d0276bd3ff3b5d458 (patch) | |
| tree | f2b79d9d2bb81b726853f44f768ddc4c2fdb9ae0 | |
| parent | 0d511482557677ef7aecb3109955d1596d5cf9d9 (diff) | |
| download | src-f6b3c49256edd4f402393a1d0276bd3ff3b5d458.tar.gz src-f6b3c49256edd4f402393a1d0276bd3ff3b5d458.zip | |
amd64: clear debug registers on execing 32bit native binary
(cherry picked from commit d50adfec9ee73e88e8d365525f1acef2c1db798a)
| -rw-r--r-- | sys/amd64/ia32/ia32_signal.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/amd64/ia32/ia32_signal.c b/sys/amd64/ia32/ia32_signal.c index 51dd1f38090f..c114cf1d240a 100644 --- a/sys/amd64/ia32/ia32_signal.c +++ b/sys/amd64/ia32/ia32_signal.c @@ -968,6 +968,8 @@ ia32_setregs(struct thread *td, struct image_params *imgp, uintptr_t stack) regs->tf_gs = _ugssel; regs->tf_flags = TF_HASSEGS; + x86_clear_dbregs(pcb); + fpstate_drop(td); /* Return via doreti so that we can change to a different %cs */ |