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[ Upstream commit 12fabae ] Commit 62622da ("ima: return IMA digest value only when IMA_COLLECTED flag is set") caused bpf_ima_inode_hash() to refuse to give non-fresh digests. IMA test #3 assumed the old behavior, that bpf_ima_inode_hash() still returned also non-fresh digests. Correct the test by accepting both cases. If the samples returned are 1, assume that the commit above is applied and that the returned digest is fresh. If the samples returned are 2, assume that the commit above is not applied, and check both the non-fresh and fresh digest. Fixes: 62622da ("ima: return IMA digest value only when IMA_COLLECTED flag is set") Reported-by: David Vernet <void@manifault.com> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Matt Bobrowski <mattbobrowski@google.com> Link: https://lore.kernel.org/bpf/20230308103713.1681200-1-roberto.sassu@huaweicloud.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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