Commit 65726b5b authored Jan 08, 2020 by Martin KaFai Lau Committed by Alexei Starovoitov Jan 09, 2020

bpf: Save PTR_TO_BTF_ID register state when spilling to stack



This patch makes the verifier save the PTR_TO_BTF_ID register state when
spilling to the stack.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200109003454.3854870-1-kafai@fb.com

parent e4300224

kernel/bpf/verifier.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1916,6 +1916,7 @@ static bool is_spillable_regtype(enum bpf_reg_type type)
		case PTR_TO_TCP_SOCK:
		case PTR_TO_TCP_SOCK_OR_NULL:
		case PTR_TO_XDP_SOCK:
		case PTR_TO_BTF_ID:
		return true;
		default:
		return false;

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