core: ltc: SM2 PKE: fix bignum memory leaks

crypto_acipher_sm2_pke_encrypt() and crypto_acipher_sm2_pke_decrypt()
leak some bignum memory due to missing calls to ecc_free() and also due
to the fact that the x and y fields of an ecc_point are overwritten.
This is all the more problematic that bignum allocations use a special
memory pool [1] that can easily cause deadlocks when misused.

This commit fixes these problems.

[1] Commit a2eb5b55d169 ("libutils: add mempool API")

Fixes: f9a78287dd12 ("core: ltc: add support for SM2 PKE")
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
1 file changed
tree: 6f1c3c823aab96b98122a68936adcd163b31f7f4
  1. .github/
  2. core/
  3. keys/
  4. ldelf/
  5. lib/
  6. mk/
  7. scripts/
  8. ta/
  9. .gitignore
  10. .shippable.yml
  11. .travis.yml
  12. CHANGELOG.md
  13. LICENSE
  14. MAINTAINERS
  15. Makefile
  16. README.md
  17. typedefs.checkpatch
README.md

OP-TEE Trusted OS

This git contains source code for the secure side implementation of OP-TEE project.

All official OP-TEE documentation has moved to http://optee.readthedocs.io.

// OP-TEE core maintainers