Re: [PATCH v10 1/5] s390/zcrypt: Fix CPRB memory allocation in zcrypt misc code
Holger Dengler <[email protected]>
| Newsgroups | org.kernel.vger.linux-s390 |
|---|---|
| Message-ID | <[email protected]> |
On 7/30/26 16:15, Harald Freudenberger wrote:
> Both CPRB alloc functions in zcrypt_ccamisc.c and zcrypt_ep11misc.c
> did not round up the memory allocation to a multiple of 4 bytes as it
> is needed by the zcrypt layer to process the CPRBs.
>
> Now the alloc_and_prep_cprbmem() and alloc_cprbmem() functions
> guarantee that the base CPRB struct and a possible parameter block are
> aligned to a 4-byte boundary and the backing memory allocation is
> rounded up to the next multiple of 4 byte. Also the free_cprbmem() is
> updated and scrubs the rounded up amount of memory.
>
> Fixes: 9bdb5f7e8369 ("s390/zcrypt: Introduce cprb mempool for cca misc functions")
> Signed-off-by: Harald Freudenberger <[email protected]>
> Cc: [email protected] # 6.16+
Reviewed-by: Holger Dengler <[email protected]>
--
Mit freundlichen Grüßen / Kind regards
Holger Dengler