[GIT PULL] integrity subsystem fixes for v5.7

[Mimi Zohar]

Hi Linus,

Here are a couple of miscellaneous bug fixes for the integrity
subsystem:

IMA:
- Properly modify the open flags in order to calculate the file hash.
- On systems requiring the IMA policy to be signed, the policy is
loaded differently. ÂDon't differentiate between "enforce" and either
"log" or "fix" modes how the policy is loaded.

EVM:
- (2 patches) Fix an EVM race condition, normally the result of
attempting to load an unsupported hash algorithm.
- Use the lockless RCU version for walking an append only list.

Mimi

The following changes since commit ae83d0b416db002fe95601e7f97f64b59514d936:

  Linux 5.7-rc2 (2020-04-19 14:35:30 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity.fixes

for you to fetch changes up to 8433856947217ebb5697a8ff9c4c9cad4639a2cf:

  evm: Fix a small race in init_desc() (2020-05-14 19:55:54 -0400)

----------------------------------------------------------------
Dan Carpenter (1):
      evm: Fix a small race in init_desc()

Madhuparna Bhowmik (1):
      evm: Fix RCU list related warnings

Roberto Sassu (3):
      ima: Set file->f_mode instead of file->f_flags in ima_calc_file_hash()
      evm: Check also if *tfm is an error pointer in init_desc()
      ima: Fix return value of ima_write_policy()

 security/integrity/evm/evm_crypto.c | 46 ++++++++++++++++++-------------------
 security/integrity/evm/evm_main.c   |  4 ++--
 security/integrity/evm/evm_secfs.c  |  9 +++++++-
 security/integrity/ima/ima_crypto.c | 12 +++++-----
 security/integrity/ima/ima_fs.c     |  3 +--
 5 files changed, 40 insertions(+), 34 deletions(-)