[Bug 242448] Re: Hardy ecryptfs can cause data loss

[Tim Gardner]

SRU Justification

Impact: Encrypted files can get corrupted.

Patch Description: eCryptfs: make ecryptfs_prepare_write decrypt the
page. When the page is not up to date, cryptfs_prepare_write() should be
acting much like ecryptfs_readpage(). This includes the painfully
obvious step of actually decrypting the page contents read from the
lower encrypted file.

Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
hardy.git;a=commit;h=d657d315c2b14e093a2eff90f7e3dd722e745f40

Test Case: See bug description.

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Hardy ecryptfs can cause data loss
https://bugs.launchpad.net/bugs/242448
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