Milan Kyselica
2c664b9531
The loop used the byte offset end (struct_off + struct_size) as the iteration limit, but cursor[i] indexes uint32_t words. This reads past the struct block when end > size_words. Use size_words (struct_size / sizeof(uint32_t)) which is the correct number of words to iterate over. Also fix a pre-existing OOB in the FDT_BEGIN_NODE handler: the guard i >= size_words is always false inside the loop (since the loop condition already ensures i < size_words), so cursor[++i] at the boundary reads one word past the struct block. Use i + 1 >= size_words to check before incrementing. Fixes: https://github.com/systemd/systemd/issues/41590
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