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Commit b0294bc1 authored by Dan Carpenter's avatar Dan Carpenter Committed by Alexei Starovoitov
Browse files

samples: bpf: ensure that we don't load over MAX_PROGS programs 



I can't see that we check prog_cnt to ensure it doesn't go over
MAX_PROGS.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 301f935b

samples/bpf/bpf_load.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -107,6 +107,9 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size) 
		return -1;

		return -1;

	}

	}





	if (prog_cnt == MAX_PROGS)

		return -1;



	fd = bpf_load_program(prog_type, prog, insns_cnt, license, kern_version,

	fd = bpf_load_program(prog_type, prog, insns_cnt, license, kern_version,

			      bpf_log_buf, BPF_LOG_BUF_SIZE);

			      bpf_log_buf, BPF_LOG_BUF_SIZE);

	if (fd < 0) {

	if (fd < 0) {