diff options
| author | Tong Tiangen <tongtiangen@huawei.com> | 2021-07-02 04:54:21 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-08-03 20:58:13 -0700 |
| commit | 13e47bebbe83f58ddc41d2987567e97c5068a1ec (patch) | |
| tree | 0dfd912f3db93075e176bff48aa743d0e6df30db /arch/riscv/Kconfig | |
| parent | 67979e927dd053bde3b71128495f651256b3161c (diff) | |
riscv: Implement thread_struct whitelist for hardened usercopy
This whitelists the FPU register state portion of the thread_struct for
copying to userspace, instead of the default entire struct.
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 8fcceb8eda07..1af859b9d5bf 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -72,6 +72,7 @@ config RISCV select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU + select HAVE_ARCH_THREAD_STRUCT_WHITELIST select HAVE_ARCH_VMAP_STACK if MMU && 64BIT select HAVE_ASM_MODVERSIONS select HAVE_CONTEXT_TRACKING |