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bpf: Fix memleak in aux->func_info and aux->btf 

The aux->func_info and aux->btf are leaked in the error out cases
during bpf_prog_load().  This patch fixes it.

Fixes: ba64e7d852 ("bpf: btf: support proper non-jit func info")
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Martin KaFai Lau 2018-12-01 17:08:44 -08:00 committed by Alexei Starovoitov
parent 71fc156ff5
commit 5482e9a93c
1 changed files with 2 additions and 0 deletions
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2
kernel/bpf/syscall.c
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@ -1560,6 +1560,8 @@ static int bpf_prog_load(union bpf_attr *attr, union bpf_attr __user *uattr)
return err;
free_used_maps:
kvfree(prog->aux->func_info);
btf_put(prog->aux->btf);
bpf_prog_kallsyms_del_subprogs(prog);
free_used_maps(prog->aux);
free_prog: