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crypto: rk3288 - Fix use after free in unprepare

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commit c0afb6b88fbbc177fa322a835f874be217bffe45 upstream.

The unprepare call must be carried out before the finalize call
as the latter can free the request.

Fixes: c66c17a0f69b ("crypto: rk3288 - Remove prepare/unprepare request")
Reported-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Herbert Xu 2024-02-28 17:13:16 +08:00 committed by Greg Kroah-Hartman
parent c288a61a48
commit 48dd260fdb
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/rockchip/rk3288_crypto_ahash.c
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@ -332,12 +332,12 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
theend:
pm_runtime_put_autosuspend(rkc->dev);
rk_hash_unprepare(engine, breq);
local_bh_disable();
crypto_finalize_hash_request(engine, breq, err);
local_bh_enable();
rk_hash_unprepare(engine, breq);
return 0;
}