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-rw-r--r--kernel/bpf/verifier.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index cced0c1..9e2bf83 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5206,7 +5206,8 @@ static int adjust_insn_aux_data(struct bpf_verifier_env *env, u32 prog_len,
if (cnt == 1)
return 0;
- new_data = vzalloc(sizeof(struct bpf_insn_aux_data) * prog_len);
+ new_data = vzalloc(array_size(prog_len,
+ sizeof(struct bpf_insn_aux_data)));
if (!new_data)
return -ENOMEM;
memcpy(new_data, old_data, sizeof(struct bpf_insn_aux_data) * off);
@@ -5447,7 +5448,7 @@ static int jit_subprogs(struct bpf_verifier_env *env)
insn->imm = 1;
}
- func = kzalloc(sizeof(prog) * env->subprog_cnt, GFP_KERNEL);
+ func = kcalloc(env->subprog_cnt, sizeof(prog), GFP_KERNEL);
if (!func)
return -ENOMEM;
@@ -5870,8 +5871,9 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr)
return -ENOMEM;
log = &env->log;
- env->insn_aux_data = vzalloc(sizeof(struct bpf_insn_aux_data) *
- (*prog)->len);
+ env->insn_aux_data =
+ vzalloc(array_size(sizeof(struct bpf_insn_aux_data),
+ (*prog)->len));
ret = -ENOMEM;
if (!env->insn_aux_data)
goto err_free_env;
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