Messages in this thread | | | Subject | Re: [PATCH] bpf: remove misleading spec_v1 check on var-offset stack read | From | patchwork-bot+netdevbpf@kernel ... | Date | Thu, 16 Mar 2023 21:10:18 +0000 |
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Hello:
This patch was applied to bpf/bpf-next.git (master) by Daniel Borkmann <daniel@iogearbox.net>:
On Wed, 15 Mar 2023 17:54:00 +0100 you wrote: > For every BPF_ADD/SUB involving a pointer, adjust_ptr_min_max_vals() > ensures that the resulting pointer has a constant offset if > bypass_spec_v1 is false. This is ensured by calling > sanitize_check_bounds() which in turn calls > check_stack_access_for_ptr_arithmetic(). There, -EACCESS is returned if > the register's offset is not constant, thereby rejecting the program. > > [...]
Here is the summary with links: - bpf: remove misleading spec_v1 check on var-offset stack read https://git.kernel.org/bpf/bpf-next/c/082cdc69a465
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