Jia-Ju Bai <baijiaju1990@xxxxxxxxx> wrote: > 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@xxxxxxxxx> Patch applied to wireless-drivers-next.git, thanks. ec2e93cf1910 b43: Avoid possible double calls to b43_one_core_detach() -- https://patchwork.kernel.org/patch/10929623/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
