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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2020-01-09 16:17:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-15 12:40:16 +0300 |
| commit | 5b24c28cfe136597dc3913e1c00b119307a20c7e (patch) | |
| tree | e1448eef314328154bc17074bc692860073fc5fd /tools/perf/scripts/python/stackcollapse.py | |
| parent | cf2f8b63f7f1f6763e4fcdf89145312224ee736b (diff) | |
| download | linux-5b24c28cfe136597dc3913e1c00b119307a20c7e.tar.xz | |
usb: gadget: f_ncm: Use atomic_t to track in-flight request
Currently ncm->notify_req is used to flag when a request is in-flight.
ncm->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 NCM driver will
unconditionally free ncm->notify_req leading to a NULL pointer dereference.
Fixes: 40d133d7f542 ("usb: gadget: f_ncm: convert to new function interface with backward compatibility")
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 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions