mlxsw: Verify the accessed index doesn't exceed the array length

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There are few cases in which an array index queried from a fw register,
is accessed without any validation that it doesn't exceed the array
length.

Add a proper length validation, so accessing memory past the end of an
array will be forbidden.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Danielle Ratson 2021-05-17 20:03:57 +03:00 • committed by David S. Miller

parent ece5df874d

commit 837ec05cfe

5 changed files with 19 additions and 0 deletions

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4

drivers/net/ethernet/mellanox/mlxsw/minimal.c

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drivers/net/ethernet/mellanox/mlxsw/spectrum.c

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drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c

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drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

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drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

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