Jia-Ju Bai
ec2e93cf19
b43: Avoid possible double calls to b43_one_core_detach()
...
In b43_request_firmware(), when ieee80211_register_hw() fails,
b43_one_core_detach() is called. In b43_bcma_remove() and
b43_ssb_remove(), b43_one_core_detach() is called again. In this case,
null-pointer dereferences and double-free problems can occur when
the driver is removed.
To fix this bug, the call to b43_one_core_detach() in
b43_request_firmware() is deleted.
This bug is found by a runtime fuzzing tool named FIZZER written by us.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com >
Signed-off-by: Kalle Valo <kvalo@codeaurora.org >
2019-05-28 15:43:34 +03:00
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