3c41971550
As seen from previous commit that fix backtracking for BPF_ALU | BPF_TO_BE | BPF_END, both BPF_NEG and BPF_END require special handling. Add tests written with inline assembly to check that the verifier does not incorrecly use the src_reg field of BPF_NEG and BPF_END (including bswap added in v4). Suggested-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Link: https://lore.kernel.org/r/20231102053913.12004-4-shung-hsi.yu@suse.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>