John Johansen d7807b6227 apparmor: Fix aa_label_build() error handling for failed merges ...

[ Upstream commit d6d478aee0 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2019-03-13 14:02:32 -07:00

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