iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop

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[ Upstream commit c2f9a4e4a5 ]

The loop counter addr is a u16 where as the upper limit of the loop
is an int. In the unlikely event that the il->cfg->eeprom_size is
greater than 64K then we end up with an infinite loop since addr will
wrap around an never reach upper loop limit. Fix this by making addr
an int.

Addresses-Coverity: ("Infinite loop")
Fixes: be663ab670 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Colin Ian King 2020-01-26 00:09:54 +00:00 • committed by Greg Kroah-Hartman

parent 6e4af087c8

commit 3babf6abb4

1 changed files with 1 additions and 1 deletions

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drivers/net/wireless/intel/iwlegacy/common.c

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