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crypto: tegra: Do not use IV for AES ECB

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It may happen that the variable req->iv may have stale values or
zero sized buffer by default and may end up getting used during
encryption/decryption. This in turn may corrupt the results or break
the operation. Ensure not use IV for algorithms like AES ECB where IV
is not expected.

Bug 4883011

Change-Id: I309ad26f99fe54005ff71b270b3b115dc62ac168
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3319062
(cherry picked from commit 4b72ba2c83)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3322768
Tested-by: Brad Griffis <bgriffis@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
This commit is contained in:
Akhil R
2025-03-13 20:56:41 -08:00
committed by Amulya Yarlagadda
parent e7bf6f1444
commit efa698bed8
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/tegra/tegra-se-aes.c
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@@ -289,7 +289,7 @@ static int tegra_aes_do_one_req(struct crypto_engine *engine, void *areq)
if (!rctx->datbuf.buf) if (!rctx->datbuf.buf)
return -ENOMEM; return -ENOMEM;
rctx->iv = (u32 *)req->iv; rctx->iv = (ctx->alg == SE_ALG_ECB) ? NULL : (u32 *)req->iv;
rctx->len = req->cryptlen; rctx->len = req->cryptlen;
key1_id = ctx->key1_id; key1_id = ctx->key1_id;
key2_id = ctx->key2_id; key2_id = ctx->key2_id;