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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-27 15:30:56 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-28 17:29:17 +0800
commit3b30460c5b0ed762be75a004e924ec3f8711e032 (patch)
tree20685fb789a0da94779dc6a97dc3c37eb4286d35 /arch
parent89027579bc6c2febbcc9c2f9d5069adf71539e4b (diff)
downloadlinux-3b30460c5b0ed762be75a004e924ec3f8711e032.tar.gz
linux-3b30460c5b0ed762be75a004e924ec3f8711e032.tar.xz
crypto: ccm - move cbcmac input off the stack
Commit f15f05b0a5de ("crypto: ccm - switch to separate cbcmac driver") refactored the CCM driver to allow separate implementations of the underlying MAC to be provided by a platform. However, in doing so, it moved some data from the linear region to the stack, which violates the SG constraints when the stack is virtually mapped. So move idata/odata back to the request ctx struct, of which we can reasonably expect that it has been allocated using kmalloc() et al. Reported-by: Johannes Berg <johannes@sipsolutions.net> Fixes: f15f05b0a5de ("crypto: ccm - switch to separate cbcmac driver") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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