[PATCH v2 0/2] crypto: caam - Fix RSA destination buffer handling

[Changwei Zou]

This series fixes two issues in the rsa-caam driver.

Patch 1 fixes wrong unmap operations where rsa_pub_unmap() was called
regardless of the key type.

Patch 2 adds a bounce buffer to handle unaligned RSA destination
buffers on DMA-incoherent hardware such as i.MX8, fixing intermittent
-EKEYREJECTED errors when loading signed kernel modules.

Changes since v1:
- Patch 1: Add Fixes: tag; pick up Reviewed-by from Sahil Malhotra.
- Patch 2: Move the !bounce_buf check out of do_rsa_bounce_buf() into
  the caller rsa_bounce_buf_done() so the helper is only entered when a
  bounce buffer actually exists; add Reported-by/Closes and Tested-by
  from Martin Kepplinger-Novakovic.

Link to v1:
https://lore.kernel.org/linux-crypto/20260821045555.806471-1-changwei.zou@xxxxxxxxxxxxx/

Changwei Zou (2):
  crypto: caam - Fix wrong unmap operations
  crypto: caam - Use bounce buffer for unaligned RSA destination buffers

 drivers/crypto/caam/caampkc.c | 123 ++++++++++++++++++++++++++++++----
 drivers/crypto/caam/caampkc.h |   6 ++
 2 files changed, 116 insertions(+), 13 deletions(-)

-- 
2.43.0