Re: [RFC PATCH v4 18/27] x86/cet/shstk: User-mode shadow stack support
From: Eugene Syromiatnikov <hidden>
Date: 2018-10-03 15:07:46
Also in:
linux-arch, linux-doc, linux-mm, lkml
On Fri, Sep 21, 2018 at 08:03:42AM -0700, Yu-cheng Yu wrote:
quoted hunk ↗ jump to hunk
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 5ea1d64cb0b4..b20450dde5b7 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c@@ -652,6 +652,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_PKEY_BIT4)] = "", #endif #endif /* CONFIG_ARCH_HAS_PKEYS */ +#ifdef CONFIG_X86_INTEL_SHADOW_STACK_USER + [ilog2(VM_SHSTK)] = "ss" +#endif
It's probably makes sense to have this hunk as a part of "x86/cet/shstk: Add Kconfig option for user-mode shadow stack", where VM_SHSTK was initially introduced.