Messages in this thread | | | Date | Wed, 15 Mar 2023 17:51:19 +0100 | From | Luis Gerhorst <> | Subject | bpf: misleading spec_v1 check on variable-offset stack read? |
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Hello,
is there any way to introduce variable-offset (stack) pointers without using pointer arithmetic (BPF_ADD/SUB)? If yes, I believe this is a security issue because these can be used in stack writes. If not, I think the patch sent in reply to this mail should be applied. (I was not able to find any indication that the former is the case.)
Best regards, Luis
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