bpf: track references based on is_acquire_func

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So far, the verifier only acquires reference tracking state for
RET_PTR_TO_SOCKET_OR_NULL. Instead of extending this for every
new return type which desires these semantics, acquire reference
tracking state iff the called helper is an acquire function.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Lorenz Bauer 2019-03-22 09:53:59 +08:00 • committed by Alexei Starovoitov

parent 48e5d98a0e

commit 0f3adc288d

1 changed files with 12 additions and 14 deletions

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kernel/bpf/verifier.c

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