apparmor: Fix aa_label_build() error handling for failed merges
aa_label_merge() can return NULL for memory allocations failures make sure to handle and set the correct error in this case. Reported-by:Peng Hao <peng.hao2@zte.com.cn> Signed-off-by:
John Johansen <john.johansen@canonical.com>
parent
a1a02062
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