samples/bpf: fix bpf loader

llvm can emit relocations into sections other than program code (like debug info sections). Ignore them during parsing of elf file Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Daniel Borkmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
josf · Nov 24, 2016 · db6a71d · db6a71d
1 parent d2b024d
commit db6a71d
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
@@ -317,6 +317,10 @@ int load_bpf_file(char *path)
 				    &shdr_prog, &data_prog))
 				continue;
 
+			if (shdr_prog.sh_type != SHT_PROGBITS ||
+			    !(shdr_prog.sh_flags & SHF_EXECINSTR))
+				continue;
+
 			insns = (struct bpf_insn *) data_prog->d_buf;
 
 			processed_sec[shdr.sh_info] = true;