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bnxt: avoid overflow in bnxt_get_nvram_directory()
authorMaxim Korotkov <korotkov.maxim.s@gmail.com>
Thu, 9 Mar 2023 17:43:47 +0000 (20:43 +0300)
committerJakub Kicinski <kuba@kernel.org>
Mon, 13 Mar 2023 23:35:49 +0000 (16:35 -0700)
commit7c6dddc239abe660598c49ec95ea0ed6399a4b2a
tree5e5d057b382ce92c1867b7fb5d4b3be1a32f71f5
parentbe50da3e9d4ad1958f7b11322d44d94d5c25a4c1
bnxt: avoid overflow in bnxt_get_nvram_directory()

The value of an arithmetic expression is subject
of possible overflow due to a failure to cast operands to a larger data
type before performing arithmetic. Used macro for multiplication instead
operator for avoiding overflow.

Found by Security Code and Linux Verification
Center (linuxtesting.org) with SVACE.

Signed-off-by: Maxim Korotkov <korotkov.maxim.s@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20230309174347.3515-1-korotkov.maxim.s@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c