Re: [PATCH] crypto: hisilicon/sec2 - prevent req used-after-free for sec

[Herbert Xu]

On Sat, Mar 21, 2026 at 03:00:38PM +0800, Chenghai Huang wrote:
> From: Wenkai Lin <linwenkai6@xxxxxxxxxxxxx>
> 
> During packet transmission, if the system is under heavy load,
> the hardware might complete processing the packet and free the
> request memory (req) before the transmission function finishes.
> If the software subsequently accesses this req, a use-after-free
> error will occur. The qp_ctx memory exists throughout the packet
> sending process, so replace the req with the qp_ctx.
> 
> Fixes: f0ae287c5045 ("crypto: hisilicon/sec2 - implement full backlog mode for sec")
> Signed-off-by: Wenkai Lin <linwenkai6@xxxxxxxxxxxxx>
> Signed-off-by: Chenghai Huang <huangchenghai2@xxxxxxxxxx>
> ---
>  drivers/crypto/hisilicon/sec2/sec_crypto.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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