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linux/security/integrity
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Mimi Zohar fea682d93e ima: relax requiring a file signature for new files with zero length 
commit b7e27bc1d4 upstream.

Custom policies can require file signatures based on LSM labels.  These
files are normally created and only afterwards labeled, requiring them
to be signed.

Instead of requiring file signatures based on LSM labels, entire
filesystems could require file signatures.  In this case, we need the
ability of writing new files without requiring file signatures.

The definition of a "new" file was originally defined as any file with
a length of zero.  Subsequent patches redefined a "new" file to be based
on the FILE_CREATE open flag.  By combining the open flag with a file
size of zero, this patch relaxes the file signature requirement.

Fixes: 1ac202e978 ima: accept previously set IMA_NEW_FILE
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-06-16 22:21:43 +01:00
..
evm EVM: Use crypto_memneq() for digest comparisons 2016-02-16 10:55:28 +00:00
ima ima: relax requiring a file signature for new files with zero length 2018-06-16 22:21:43 +01:00
digsig.c Revert "ima: define '_ima' as a builtin 'trusted' keyring" 2013-11-23 16:36:35 -08:00
digsig_asymmetric.c ima: read and use signature hash algorithm 2013-10-25 17:16:59 -04:00
iint.c integrity: fix checkpatch errors 2014-03-07 12:15:45 -05:00
integrity.h ima: check xattr value length and type in the ima_inode_setxattr() 2014-11-13 11:48:50 +00:00
integrity_audit.c Merge git://git.infradead.org/users/eparis/audit 2014-04-12 12:38:53 -07:00
Kconfig integrity: move integrity_audit_msg() 2013-06-20 07:47:49 -04:00
Makefile security: cleanup Makefiles to use standard syntax for specifying sub-directories 2014-02-17 11:08:04 +11:00