Re: [PATCH] crypto: marvell/octeontx - Fix a potential NULL dereference

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On Fri, Jun 05, 2020 at 02:03:39PM +0300, Dan Carpenter wrote:
> Smatch reports that:
> 
>     drivers/crypto/marvell/octeontx/otx_cptvf_algs.c:132 otx_cpt_aead_callback()
>     warn: variable dereferenced before check 'cpt_info' (see line 121)
> 
> This function is called from process_pending_queue() as:
> 
> drivers/crypto/marvell/octeontx/otx_cptvf_reqmgr.c
>    599                  /*
>    600                   * Call callback after current pending entry has been
>    601                   * processed, we don't do it if the callback pointer is
>    602                   * invalid.
>    603                   */
>    604                  if (callback)
>    605                          callback(res_code, areq, cpt_info);
> 
> It does appear to me that "cpt_info" can be NULL so this could lead to
> a NULL dereference.
> 
> Fixes: 10b4f09491bf ("crypto: marvell - add the Virtual Function driver for CPT")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
>  drivers/crypto/marvell/octeontx/otx_cptvf_algs.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt



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