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author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-02-29 08:30:12 -0500 |
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committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-05-01 09:23:52 -0400 |
commit | 42a4c603198f0d45b7aa936d3ac6ba1b8bd14a1b (patch) | |
tree | fca744f08e4a7e7563ff5f691a9d75766853c654 /security/integrity/ima/ima_appraise.c | |
parent | 39d637af5aa7577f655c58b9e55587566c63a0af (diff) | |
download | linux-stable-42a4c603198f0d45b7aa936d3ac6ba1b8bd14a1b.tar.gz linux-stable-42a4c603198f0d45b7aa936d3ac6ba1b8bd14a1b.tar.bz2 linux-stable-42a4c603198f0d45b7aa936d3ac6ba1b8bd14a1b.zip |
ima: fix ima_inode_post_setattr
Changing file metadata (eg. uid, guid) could result in having to
re-appraise a file's integrity, but does not change the "new file"
status nor the security.ima xattr. The IMA_PERMIT_DIRECTIO and
IMA_DIGSIG_REQUIRED flags are policy rule specific. This patch
only resets these flags, not the IMA_NEW_FILE or IMA_DIGSIG flags.
With this patch, changing the file timestamp will not remove the
file signature on new files.
Reported-by: Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Tested-by: Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com>
Diffstat (limited to 'security/integrity/ima/ima_appraise.c')
-rw-r--r-- | security/integrity/ima/ima_appraise.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index 6b4694aedae8..d2f28a0c8614 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -328,7 +328,7 @@ void ima_inode_post_setattr(struct dentry *dentry) if (iint) { iint->flags &= ~(IMA_APPRAISE | IMA_APPRAISED | IMA_APPRAISE_SUBMASK | IMA_APPRAISED_SUBMASK | - IMA_ACTION_FLAGS); + IMA_ACTION_RULE_FLAGS); if (must_appraise) iint->flags |= IMA_APPRAISE; } |