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(parent: 02f7c95) | patch
bpf: Make context access check generic
authorLorenz Bauer <lmb@cloudflare.com>
Mon, 21 Sep 2020 12:12:23 +0000 (13:12 +0100)
committerAlexei Starovoitov <ast@kernel.org>
Mon, 21 Sep 2020 22:00:41 +0000 (15:00 -0700)
commitfeec70401672bd9b0268ae59ec5efd15d86ae138
treed3e545d04b0c1ff4aabc04fe6fa8923583c2c1dctree | snapshot
parent02f7c9585d1e2d5d76cac497bd5ced8ecf9d6f56commit | diff
bpf: Make context access check generic

Always check context access if the register we're operating on is
PTR_TO_CTX, rather than relying on ARG_PTR_TO_CTX. This allows
simplifying the arg_type checking section of the function.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200921121227.255763-8-lmb@cloudflare.com
kernel/bpf/verifier.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)