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(parent: 7cf8195) | patch
crypto: hisilicon - Cap block size at 2^31
authorHerbert Xu <herbert@gondor.apana.org.au>
Thu, 4 Jun 2020 07:37:50 +0000 (17:37 +1000)
committerHerbert Xu <herbert@gondor.apana.org.au>
Mon, 15 Jun 2020 07:38:53 +0000 (17:38 +1000)
commitc61e5644c69775ae9d54b86018fca238aca64a9b
tree44e1bbdc760d7346de3716d8e88f8143ecb0f338tree | snapshot
parent7cf81954705b7e5b057f7dc39a7ded54422ab6e1commit | diff
crypto: hisilicon - Cap block size at 2^31

The function hisi_acc_create_sg_pool may allocate a block of
memory of size PAGE_SIZE * 2^(MAX_ORDER - 1).  This value may
exceed 2^31 on ia64, which would overflow the u32.

This patch caps it at 2^31.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: d8ac7b85236b ("crypto: hisilicon - fix large sgl memory...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/hisilicon/sgl.c diff | blob | history
Domain: System / Kernel;