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Groups > linux.kernel > #1337588
| From | Catalin Marinas <catalin.marinas@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] arm64: kasan: clear stale stack poison |
| Date | 2016-02-18 19:00 +0100 |
| Message-ID | <r3B1U-Ga-1@gated-at.bofh.it> (permalink) |
| References | <r3AyV-uN-65@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Feb 18, 2016 at 05:27:38PM +0000, Mark Rutland wrote: > @@ -145,6 +146,7 @@ ENTRY(cpu_resume_mmu) > ENDPROC(cpu_resume_mmu) > .popsection > cpu_resume_after_mmu: > + kasan_unpoison_stack 96 I don't think the 96 here is needed since we populate the stack in assembly (__cpu_suspend_enter) and unwind it again still in assembly (cpu_resume_after_mmu), so no KASAN shadow writes/reads. Otherwise the patch looks fine. -- Catalin
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[PATCH] arm64: kasan: clear stale stack poison Mark Rutland <mark.rutland@arm.com> - 2016-02-18 18:30 +0100
Re: [PATCH] arm64: kasan: clear stale stack poison Catalin Marinas <catalin.marinas@arm.com> - 2016-02-18 19:00 +0100
Re: [PATCH] arm64: kasan: clear stale stack poison Will Deacon <will.deacon@arm.com> - 2016-02-18 19:10 +0100
Re: [PATCH] arm64: kasan: clear stale stack poison Catalin Marinas <catalin.marinas@arm.com> - 2016-02-18 19:20 +0100
Re: [PATCH] arm64: kasan: clear stale stack poison Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-02-19 12:00 +0100
Re: [PATCH] arm64: kasan: clear stale stack poison Mark Rutland <mark.rutland@arm.com> - 2016-02-19 12:40 +0100
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