Messages in this thread | | | From | Andy Lutomirski <> | Date | Tue, 8 Mar 2016 12:58:59 -0800 | Subject | Re: [PATCH v3 1/3] SROP Mitigation: Architecture independent code for signal cookies |
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On Tue, Mar 8, 2016 at 12:47 PM, Scott Bauer <sbauer@eng.utah.edu> wrote: > This patch adds a per-process secret to the task struct which > will be used during signal delivery and during a sigreturn. > Also, logic is added in signal.c to generate, place, extract, > clear and verify the signal cookie. >
Potentially silly question: it's been a while since I read the SROP paper, but would the technique be effectively mitigated if sigreturn were to zero out the whole signal frame before returning to user mode?
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