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Merge "KernelCpuUidBpfMapReader: Verify presence of Uids before deleting"

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Treehugger Robot
2020-06-08 08:58:05 +00:00
committed by Gerrit Code Review
parent d7785982ac 861bdbfb56
commit 907124607f
1 changed files with 12 additions and 1 deletions
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13
core/java/com/android/internal/os/KernelCpuUidBpfMapReader.java
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@@ -16,7 +16,6 @@
package com.android.internal.os; package com.android.internal.os;
import android.os.StrictMode;
import android.os.SystemClock; import android.os.SystemClock;
import android.util.Slog; import android.util.Slog;
import android.util.SparseArray; import android.util.SparseArray;
@@ -90,9 +89,21 @@ public abstract class KernelCpuUidBpfMapReader {
if (mErrors > ERROR_THRESHOLD) { if (mErrors > ERROR_THRESHOLD) {
return; return;
} }
if (endUid < startUid || startUid < 0) {
return;
}
mWriteLock.lock(); mWriteLock.lock();
int firstIndex = mData.indexOfKey(startUid); int firstIndex = mData.indexOfKey(startUid);
if (firstIndex < 0) {
mData.put(startUid, null);
firstIndex = mData.indexOfKey(startUid);
}
int lastIndex = mData.indexOfKey(endUid); int lastIndex = mData.indexOfKey(endUid);
if (lastIndex < 0) {
mData.put(endUid, null);
lastIndex = mData.indexOfKey(endUid);
}
mData.removeAtRange(firstIndex, lastIndex - firstIndex + 1); mData.removeAtRange(firstIndex, lastIndex - firstIndex + 1);
mWriteLock.unlock(); mWriteLock.unlock();
} }