[GIT PULL] Asymmetric keys fix for v6.4-rc5

[Roberto Sassu]

Hi Linus

sorry for this unusual procedure of me requesting a patch to be pulled.
I asked for several months the maintainers (David: asymmetric keys,
Jarkko: key subsystem) to pick my patch but without any luck.

I signed the tag, but probably it would not matter, since my key is not
among your trusted keys.

The following changes since commit 921bdc72a0d68977092d6a64855a1b8967acc1d9:

  Merge tag 'mmc-v6.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc (2023-06-02 08:35:13 -0400)

are available in the Git repository at:

  https://github.com/robertosassu/linux.git tags/asym-keys-fix-for-linus-v6.4-rc5

for you to fetch changes up to c3d03e8e35e005e1a614e51bb59053eeb5857f76:

  KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() (2023-06-02 15:36:23 +0200)

----------------------------------------------------------------
Asymmetric keys fix for v6.4-rc5

Here is a small fix to make an unconditional copy of the buffer passed
to crypto operations, to take into account the case of the stack not in
the linear mapping area.

It has been tested and verified to fix the bug.

Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>

----------------------------------------------------------------
Roberto Sassu (1):
      KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()

 crypto/asymmetric_keys/public_key.c | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)