From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com> stable inclusion from stable-v5.10.94 commit 1f6151b0774be73a747c8ed95d482d20d2d13daf bugzilla: https://gitee.com/openeuler/kernel/issues/I531X9 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit fa97dc2d48b476ea98199d808d3248d285987e99 ] This fixes the lrw autotest if lrw uses the CRYP as the AES block cipher provider (as ecb(aes)). At end of request, CRYP should not update the IV in case of ECB chaining mode. Indeed the ECB chaining mode never uses the IV, but the software LRW chaining mode uses the IV field as a counter and due to the (unexpected) update done by CRYP while the AES block process, the counter get a wrong value when the IV overflow. Fixes: 5f49f18d27cd ("crypto: stm32/cryp - update to return iv_out") Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Acked-by: Xie XiuQi <xiexiuqi@huawei.com> --- drivers/crypto/stm32/stm32-cryp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index 061db567908a..9943836a5c25 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -644,7 +644,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err) /* Phase 4 : output tag */ err = stm32_cryp_read_auth_tag(cryp); - if (!err && (!(is_gcm(cryp) || is_ccm(cryp)))) + if (!err && (!(is_gcm(cryp) || is_ccm(cryp) || is_ecb(cryp)))) stm32_cryp_get_iv(cryp); if (cryp->sgs_copied) { -- 2.20.1