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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2020-01-09 16:17:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-15 12:40:22 +0300 |
| commit | d710562e01c48d59be3f60d58b7a85958b39aeda (patch) | |
| tree | 9b4c503cf335912b6c577807eaa917540a3a915c /drivers/usb/dwc2/core_intr.c | |
| parent | 5b24c28cfe136597dc3913e1c00b119307a20c7e (diff) | |
| download | linux-d710562e01c48d59be3f60d58b7a85958b39aeda.tar.xz | |
usb: gadget: f_ecm: Use atomic_t to track in-flight request
Currently ecm->notify_req is used to flag when a request is in-flight.
ecm->notify_req is set to NULL and when a request completes it is
subsequently reset.
This is fundamentally buggy in that the unbind logic of the ECM driver will
unconditionally free ecm->notify_req leading to a NULL pointer dereference.
Fixes: da741b8c56d6 ("usb ethernet gadget: split CDC Ethernet function")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2/core_intr.c')
0 files changed, 0 insertions, 0 deletions