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| author | Brian Norris <[email protected]> | 2017-03-28 16:59:32 -0700 |
|---|---|---|
| committer | Kalle Valo <[email protected]> | 2017-04-05 15:44:03 +0300 |
| commit | ce8fad9a1f09009ec3918a99685d9e3176f50ce3 (patch) | |
| tree | b907bf425f6e9cebf17c1c17f165bb8e2dd21b39 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 78b9ccb81377ba908b2c18daf6e1a7beddc281e3 (diff) | |
mwifiex: fix use-after-free for FW reinit errors
If we fail to reinit the FW when resetting the device (in the
synchronous version of mwifiex_init_hw_fw() -> mwifiex_fw_dpc()),
mwifiex_fw_dpc() will tear down the interface and free up the adapter.
But we don't actually check for all failure cases of mwifiex_fw_dpc(),
so some of them fall through and dereference adapter->fw_done with a
freed adapter, causing a use-after-free bug.
In any case, mwifiex_fw_dpc() will always signal FW completion -- in the
error OR success case -- so at best, this was repeat work. Let's not do
it.
Signed-off-by: Brian Norris <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions