Messages in this thread | | | Subject | Re: [PATCH] b43: Avoid possible double calls to b43_one_core_detach() | From | Kalle Valo <> | Date | Tue, 28 May 2019 12:43:55 +0000 (UTC) |
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Jia-Ju Bai <baijiaju1990@gmail.com> 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@gmail.com>
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
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