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| H A D | tee_svc_cryp.c | 7e35937aae6d65507bab36f10bd46249de6a835c Mon Jan 25 15:03:52 UTC 2021 Jerome Forissier <jerome@forissier.org> core: crypto: sm2: do not panic core if key allocation fails
During SM2 key derivation via syscall_cryp_derive_key(), if
crypto_acipher_alloc_ecc_public_key() fails for whatever reason in
get_sm2_kep_params(), peer_key and/or peer_eph_key are left in an invalid
state and it is incorrect to call crypto_acipher_free_ecc_public_key()
in this case. Doing so causes a core panic:
E/TC:? 0 assertion 'key->ops && key->ops->free' failed at core/crypto/crypto.c:702 <crypto_acipher_free_ecc_public_key>
E/TC:1 0 Panic at core/kernel/assert.c:28 <_assert_break>
Fix the get_sm2_kep_params() cleanup code to avoid this situation.
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
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