iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libnvdimm: prevent nvdimm from requesting key when security is disabled

Browse Source 
Current implementation attempts to request keys from the keyring even when
security is not enabled. Change behavior so when security is disabled it
will skip key request.

Error messages seen when no keys are installed and libnvdimm is loaded:

    request-key[4598]: Cannot find command to construct key 661489677
    request-key[4606]: Cannot find command to construct key 34713726

Cc: stable@vger.kernel.org
Fixes: 4c6926a23b76 ("acpi/nfit, libnvdimm: Add unlock of nvdimm support for Intel DIMMs")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/156934642272.30222.5230162488753445916.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dave Jiang 2019-09-24 10:34:49 -07:00 committed by Dan Williams
parent c42adf87e4
commit 674f31a352
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/nvdimm/security.c
View File

@ -177,6 +177,10 @@ static int __nvdimm_security_unlock(struct nvdimm *nvdimm)
|| !nvdimm->sec.flags)
return -EIO;
/* No need to go further if security is disabled */
if (test_bit(NVDIMM_SECURITY_DISABLED, &nvdimm->sec.flags))
return 0;
if (test_bit(NDD_SECURITY_OVERWRITE, &nvdimm->flags)) {
dev_dbg(dev, "Security operation in progress.\n");
return -EBUSY;