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| author |   Martin KaFai Lau <kafai@fb.com> | 2020-01-08 16:34:54 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-01-09 08:45:32 -0800 |
| commit | 65726b5b7efae718391752ae8bb85b9843fd83f4 (patch) | |
| tree | 4e07d0e4334e550a892f4a05dc89fc1706329aa5 /kernel/bpf/verifier.c | |
| parent | selftests/bpf: Restore original comm in test_overhead (diff) | |
| download | linux-dev-65726b5b7efae718391752ae8bb85b9843fd83f4.tar.xz linux-dev-65726b5b7efae718391752ae8bb85b9843fd83f4.zip | |
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
Diffstat (limited to '')
| -rw-r--r-- | kernel/bpf/verifier.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 6f63ae7a370c..d433d70022fd 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -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; |