zephyrCommon: fix issues with invalid pin numbers#392
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pennam merged 1 commit intoarduino:mainfrom Mar 19, 2026
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Keeping fingers crossed that this makes it in! Tried to do something similar for UNO R4 back in 2023, which is still sitting there. |
pennam
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Passing -1 to digital I/O functions may happen when libraries do not properly sanitize their inputs, leading to undefined behavior. This commit adds a check to ensure that the pin number is valid before accessing the arduino_pins array. Signed-off-by: Luca Burelli <l.burelli@arduino.cc>
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Built
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| Artifact | Board | Core | Tests | RAM | Sketches | Warnings | Errors |
|---|---|---|---|---|---|---|---|
✅ zephyr_contrib |
ek_ra8d1
| 📗 | ✅ |
11.9% |
2 | - | - |
frdm_mcxn947
| 3 🏷️ | ✅ |
58.0% |
2 | - | - | |
frdm_rw612
| 1 🏷️ | ✅ |
83.0% |
2 | - | - | |
✔️* zephyr_main |
giga
| 4 🏷️ | ✅* |
54.5% |
44 | 8 | - |
nano33ble
| 1 🏷️ | ✅* |
78.7% |
22 | 8 | - | |
nano_matter
| 📗 | ✔️* |
|
20 | 8 | (2*) | |
niclasense
| 2 🏷️ | ✅* |
|
20 | 8 | - | |
opta
| 4 🏷️ | ✔️* |
46.7% |
54 | 8 | (2*) | |
portentac33
| 3 🏷️ | ✔️* |
|
56 | 8 | (8*) | |
portentah7
| 3 🏷️ | ✔️* |
47.3% |
58 | 8 | (2*) | |
✅* zephyr_unoq |
unoq
| 📗 | ✅* |
26.4% |
60 | 8 | - |
Legend
Board Test Status description 🔥 🔥 Test run failed to complete. ❌ 🔴 Test completed with unexpected errors. ✔️* 🚫 Test completed with errors, but all are known/expected. ✅* 🟡 Test completed with some warnings; no errors detected. ✅ 🟢 Test passed successfully, with no warnings or errors. 🌑 🌑 Test was skipped.
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Passing -1 to digital I/O functions may happen when libraries do not properly sanitize their inputs, leading to undefined behavior.
This PR adds a check to ensure that the pin number is valid before accessing the
arduino_pinsarray.