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Fix crashes when DeviceCommissioner is shut down. #22245
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bzbarsky-apple
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Fix crashes when DeviceCommissioner is shut down. #22245
bzbarsky-apple
merged 1 commit into
project-chip:master
from
bzbarsky-apple:fix-controller-shutdown-crash
Aug 30, 2022
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There are two fixes here: 1) Ensure that DeviceCommissioner::Shutdown properly cleans up mDeviceBeingCommissioned so we don't end up with it being a dangling pointer. 2) Ensure that DeviceCommissioner::CommissioningStageComplete doesn't try to derefence a null mDeviceBeingCommissioned (which indicates something has already stopped the commissioning process). Fixes project-chip#22243
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PR #22245: Size comparison from 6329339 to f6e0ff4 Increases (6 builds for cc13x2_26x2, linux, psoc6)
Decreases (5 builds for cc13x2_26x2, esp32, psoc6, telink)
Full report (43 builds for bl602, cc13x2_26x2, cyw30739, efr32, esp32, k32w, linux, mbed, nrfconnect, psoc6, telink)
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There are two fixes here: 1) Ensure that DeviceCommissioner::Shutdown properly cleans up mDeviceBeingCommissioned so we don't end up with it being a dangling pointer. 2) Ensure that DeviceCommissioner::CommissioningStageComplete doesn't try to derefence a null mDeviceBeingCommissioned (which indicates something has already stopped the commissioning process). Fixes project-chip#22243
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There are two fixes here:
Ensure that DeviceCommissioner::Shutdown properly cleans up
mDeviceBeingCommissioned so we don't end up with it being a dangling pointer.
Ensure that DeviceCommissioner::CommissioningStageComplete doesn't try to
derefence a null mDeviceBeingCommissioned (which indicates something has
already stopped the commissioning process).
Fixes #22243
Problem
See #22243 for crash analysis.
Change overview
See above.
Testing
CI should generally test this on happy paths. Trying to figure out how to write a test that would exercise the "shut down in the middle of commissioning" codepath.