crypto: qat - fix potential spectre issue

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Sanitize ring_num value coming from configuration (and potentially
from user space) before it is used as index in the banks array.

This issue was detected by smatch:

    drivers/crypto/qat/qat_common/adf_transport.c:233 adf_create_ring() warn: potential spectre issue 'bank->rings' [r] (local cap)

Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

...

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Adam Guerin 2021-01-04 17:21:57 +00:00 • committed by Herbert Xu

parent 0db0d797ab

commit 1aaae055d4

1 changed files with 2 additions and 0 deletions

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drivers/crypto/qat/qat_common/adf_transport.c

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