wifi: mwifiex: avoid possible NULL skb pointer dereference

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[ Upstream commit 35a7a1ce7c ]

In 'mwifiex_handle_uap_rx_forward()', always check the value
returned by 'skb_copy()' to avoid potential NULL pointer
dereference in 'mwifiex_uap_queue_bridged_pkt()', and drop
original skb in case of copying failure.

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

Fixes: 838e4f4492 ("mwifiex: improve uAP RX handling")
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230814095041.16416-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Dmitry Antipov 2023-08-14 12:49:57 +03:00 • committed by Greg Kroah-Hartman

parent 1f4e3e9ba2

commit 0c57f9ad2c

1 changed files with 9 additions and 1 deletions

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drivers/net/wireless/marvell/mwifiex/uap_txrx.c

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