Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote:
> In the function brcmf_sdio_firmware_callback() the driver is
> unbound from the sdio function devices in the error path.
> However, the order in which it is done resulted in a use-after-free
> issue (see brcmf_ops_sdio_remove() in bcmsdh.c). Hence change
> the order and first unbind sdio function #2 device and then
> unbind sdio function #1 device.
>
> Cc: stable@xxxxxxxxxxxxxxx # v4.12.x
> Fixes: 7a51461fc2da ("brcmfmac: unbind all devices upon failure in firmware callback")
> Reported-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
> Reviewed-by: Hante Meuleman <hante.meuleman@xxxxxxxxxxxx>
> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@xxxxxxxxxxxx>
> Reviewed-by: Franky Lin <franky.lin@xxxxxxxxxxxx>
> Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Patch applied to wireless-drivers.git, thanks.
5c3de777bdaf brcmfmac: change driver unbind order of the sdio function devices
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https://patchwork.kernel.org/patch/10075091/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
