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[utils] check whether mInfo.mTxInfo.mIeInfo is null before using it (#11238)

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The simulation platform radio driver doesn't set the 'mInfo.mTxInfo.mIeInfo'
field of the ACK frame. And the function 'otMacFrameUpdateTimeIe()' directly
use the 'mInfo.mTxInfo.mIeInfo' field, this may cause the program crash.

This commit checks whether 'mInfo.mTxInfo.mIeInfo' is null before using it
and sets the 'mInfo.mTxInfo.mIeInfo' field of the ACK frame to null in
simulation platform.
This commit is contained in:
Zhanglong Xia
2025-02-13 02:24:34 +08:00
committed by GitHub
parent a516a86209
commit c1c5db8f20
2 changed files with 16 additions and 11 deletions
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examples/platforms/simulation/radio.c
+1
View File
@@ -420,6 +420,7 @@ void platformRadioInit(void)
#else
sTransmitFrame.mInfo.mTxInfo.mIeInfo = NULL;
#endif
sAckFrame.mInfo.mTxInfo.mIeInfo = NULL;
for (size_t i = 0; i <= kMaxChannel - kMinChannel; i++)
{
examples/platforms/utils/mac_frame.cpp
+15 -11
View File
@@ -380,20 +380,24 @@ exit:
#if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
void otMacFrameUpdateTimeIe(otRadioFrame *aFrame, uint64_t aRadioTime, otRadioContext *aRadioContext)
{
if (aFrame->mInfo.mTxInfo.mIeInfo->mTimeIeOffset != 0)
uint8_t *timeIe;
uint64_t time;
VerifyOrExit((aFrame->mInfo.mTxInfo.mIeInfo != nullptr) && (aFrame->mInfo.mTxInfo.mIeInfo->mTimeIeOffset != 0));
timeIe = aFrame->mPsdu + aFrame->mInfo.mTxInfo.mIeInfo->mTimeIeOffset;
time = aRadioTime + aFrame->mInfo.mTxInfo.mIeInfo->mNetworkTimeOffset;
*timeIe = aFrame->mInfo.mTxInfo.mIeInfo->mTimeSyncSeq;
*(++timeIe) = static_cast<uint8_t>(time & 0xff);
for (uint8_t i = 1; i < sizeof(uint64_t); i++)
{
uint8_t *timeIe = aFrame->mPsdu + aFrame->mInfo.mTxInfo.mIeInfo->mTimeIeOffset;
uint64_t time = aRadioTime + aFrame->mInfo.mTxInfo.mIeInfo->mNetworkTimeOffset;
*timeIe = aFrame->mInfo.mTxInfo.mIeInfo->mTimeSyncSeq;
time = time >> 8;
*(++timeIe) = static_cast<uint8_t>(time & 0xff);
for (uint8_t i = 1; i < sizeof(uint64_t); i++)
{
time = time >> 8;
*(++timeIe) = static_cast<uint8_t>(time & 0xff);
}
}
exit:
return;
}
#endif // OPENTHREAD_CONFIG_TIME_SYNC_ENABLE