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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2020-01-09 13:17:22 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-14 16:29:55 -0500 |
| commit | e5288d1379b56aa1b92972cebb7011255e4cd145 (patch) | |
| tree | 72b84b4f9f45f20543b8c3f1431d9dabe1dc8d6a /lib/test_kasan.c | |
| parent | b2e19c795f58b0a516a5d7524407fb2a2c82cba1 (diff) | |
usb: gadget: f_ecm: Use atomic_t to track in-flight request
commit d710562e01c48d59be3f60d58b7a85958b39aeda upstream.
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 'lib/test_kasan.c')
0 files changed, 0 insertions, 0 deletions