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authorEric W. Biederman <ebiederm@xmission.com>2016-12-02 09:35:31 -0600
committerEric W. Biederman <ebiederm@xmission.com>2016-12-02 20:58:41 -0600
commit19339c251607a3defc7f089511ce8561936fee45 (patch)
treebc9111556f3cdf375c0a3530420ae9da0b578342 /mm
parentf84df2a6f268de584a201e8911384a2d244876e3 (diff)
Revert "evm: Translate user/group ids relative to s_user_ns when computing HMAC"
This reverts commit 0b3c9761d1e405514a551ed24d3ea89aea26ce14. Seth Forshee <seth.forshee@canonical.com> writes: > All right, I think 0b3c9761d1e405514a551ed24d3ea89aea26ce14 should be > reverted then. EVM is a machine-local integrity mechanism, and so it > makes sense that the signature would be based on the kernel's notion of > the uid and not the filesystem's. I added a commment explaining why the EVM hmac needs to be in the kernel's notion of uid and gid, not the filesystems to prevent remounting the filesystem and gaining unwaranted trust in files. Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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