net: bcmasp: Prevent array undereflow in bcmasp_netfilt_get_init()

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The "loc" value comes from the user and it can be negative leading to an
an array underflow when we check "priv->net_filters[loc].claimed".  Fix
this by changing the type to u32.

Fixes: c5d511c495 ("net: bcmasp: Add support for wake on net filters")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Justin Chen <justin.chen@broadcom.com>
Link: https://lore.kernel.org/r/b3b47b25-01fc-4d9f-a6c3-e037ad4d71d7@moroto.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Dan Carpenter 2023-08-07 16:01:53 +03:00 • committed by Jakub Kicinski

parent c0256168d1

commit 48d17c517a

2 changed files with 2 additions and 2 deletions

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2

drivers/net/ethernet/broadcom/asp2/bcmasp.c

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2

drivers/net/ethernet/broadcom/asp2/bcmasp.h

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