linux-apfs

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Dmitry Kasatkin 2c50b96482 ima: remove unnecessary i_mutex locking from ima_rdwr_violation_check()

Before 2.6.39 inode->i_readcount was maintained by IMA. It was not atomic
and protected using spinlock. For 2.6.39, i_readcount was converted to
atomic and maintaining was moved VFS layer. Spinlock for some unclear
reason was replaced by i_mutex.

After analyzing the code, we came to conclusion that i_mutex locking is
unnecessary, especially when an IMA policy has not been defined.

This patch removes i_mutex locking from ima_rdwr_violation_check().

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>

2014-07-17 09:35:09 -04:00

evm

evm: prohibit userspace writing 'security.evm' HMAC value

2014-06-12 17:58:07 -04:00

ima

ima: remove unnecessary i_mutex locking from ima_rdwr_violation_check()

2014-07-17 09:35:09 -04:00

digsig_asymmetric.c

ima: read and use signature hash algorithm

2013-10-25 17:16:59 -04:00

digsig.c

Revert "ima: define '_ima' as a builtin 'trusted' keyring"