wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attribute

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Validate that the IEEE80211_P2P_ATTR_CHANNEL_LIST attribute contains
enough space for a 'struct wilc_attr_oper_ch'. If the attribute is too
small then it can trigger an out-of-bounds write later in the function.

'struct wilc_attr_oper_ch' is variable sized so also check 'attr_len'
does not extend beyond the end of 'buf'.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-4-philipturnbull@github.com

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Phil Turnbull 2022-11-23 10:35:42 -05:00 • committed by Kalle Valo

parent 051ae669e4

commit f9b62f9843

1 changed files with 2 additions and 1 deletions

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drivers/net/wireless/microchip/wilc1000/cfg80211.c

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