From: Dan Carpenter <dan.carpenter@linaro.org>
To: Lin YuChen <starpt.official@gmail.com>
Cc: gregkh@linuxfoundation.org, straube.linux@gmail.com,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()
Date: Fri, 20 Mar 2026 11:29:10 +0300 [thread overview]
Message-ID: <ab0FVmaHo2N_mRXa@stanley.mountain> (raw)
In-Reply-To: <20260319170312.71408-1-starpt.official@gmail.com>
On Fri, Mar 20, 2026 at 01:03:12AM +0800, Lin YuChen wrote:
> Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using
> uninitialized data.
>
> Smatch warns that only 6 bytes are copied to this 8-byte (u64)
> variable, leaving the last two bytes uninitialized:
>
> drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify()
> warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes)
>
> Initializing the variable at the start of the function fixes this
> warning and ensures predictable behavior.
>
> Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
> Closes: https://lore.kernel.org/linux-staging/abvwIQh0CHTp4wNJ@stanley.mountain/
> Signed-off-by: Lin YuChen <starpt.official@gmail.com>
> ---
Add a Fixes tag? Otherwise, it looks good.
regards,
dan carpenter
prev parent reply other threads:[~2026-03-20 8:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-19 17:03 [PATCH] staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify() Lin YuChen
2026-03-20 8:29 ` Dan Carpenter [this message]
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