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

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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 <[email protected]>
Signed-off-by: Martin KaFai Lau <[email protected]>
Acked-by: Yonghong Song <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
This commit is contained in:
Martin KaFai Lau authored and Alexei Starovoitov committed 2018-12-02 09:12:58 -08:00
1 parent 71fc156ff5
commit 5482e9a93c
1 file changed
+2
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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: