linux-kernel - Re: [PATCH] stm32: stm32-hash: Add kmalloc

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Date:   Sat, 25 Feb 2023 07:14:29 +0800
From:   Li kunyu <kunyu@...china.com>
To:     herbert@...dor.apana.org.au
Cc:     davem@...emloft.net, kunyu@...china.com, linus.walleij@...aro.org,
        linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com, mcoquelin.stm32@...il.com
Subject: Re: [PATCH] stm32: stm32-hash: Add kmalloc_array allocation check

hello senior:
  'rctx->hw_context' is a member of the rctx pointer array object and will pass 'memcpy(out, rctx, sizeof(*rctx)) at the end of the function;  ', copied to the out pointer memory, it cannot be released, I think this patch does an allocation check on the 'rctx->hw_context' pointer should help a bit.