From: Alexei Starovoitov ast@kernel.org
[ Upstream commit a0791f0df7d212c245761538b17a9ea93607b667 ]
vmlinux BTF has more than 64k types. Its string section is also at the offset larger than 64k. Adjust both limits to make in-kernel BTF verifier successfully parse in-kernel BTF.
Fixes: 69b693f0aefa ("bpf: btf: Introduce BPF Type Format (BTF)") Signed-off-by: Alexei Starovoitov ast@kernel.org Acked-by: Martin KaFai Lau kafai@fb.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/btf.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/uapi/linux/btf.h b/include/uapi/linux/btf.h index 972265f328717..1e2662ff05291 100644 --- a/include/uapi/linux/btf.h +++ b/include/uapi/linux/btf.h @@ -22,9 +22,9 @@ struct btf_header { };
/* Max # of type identifier */ -#define BTF_MAX_TYPE 0x0000ffff +#define BTF_MAX_TYPE 0x000fffff /* Max offset into the string section */ -#define BTF_MAX_NAME_OFFSET 0x0000ffff +#define BTF_MAX_NAME_OFFSET 0x00ffffff /* Max # of struct/union/enum members or func args */ #define BTF_MAX_VLEN 0xffff