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Check for negative offsets.

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This commit is contained in:
Andy Nguyen 2021-10-27 21:06:56 +02:00
parent 560014c17d
commit 304686cfc0
1 changed files with 3 additions and 3 deletions
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6
com/bdjb/JIT.java
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@ -142,11 +142,11 @@ public final class JIT {
RandomAccessFile file = new RandomAccessFile(path, "r"); RandomAccessFile file = new RandomAccessFile(path, "r");
if ((dataSectionOffset & (PAGE_SIZE - 1)) != 0) { if ((dataSectionOffset & (PAGE_SIZE - 1)) != 0) {
throw new IllegalArgumentException("Ddata section offset is not page aligned."); throw new IllegalArgumentException("Unaligned data section offset.");
} }
if (dataSectionOffset > file.length()) { if (dataSectionOffset < 0 || dataSectionOffset > file.length()) {
throw new IllegalArgumentException("Data section offset is too big."); throw new IllegalArgumentException("Invalid data section offset.");
} }
// TODO: Currently we just use maximum size so that the address is predictable. // TODO: Currently we just use maximum size so that the address is predictable.