fix: prevent panic on malformed ISO9660 path table#5
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Add bounds checking in parsePathTable to prevent slice bounds out of range panic when parsing malformed ISO9660 images with truncated path table entries. Found by fuzzing: the path table entry's dirNameLen field could specify a length exceeding the remaining buffer, causing a panic when slicing.
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Summary
parsePathTableto prevent slice bounds out of range panic when parsing malformed ISO9660 imagesBackground
The fuzzer found that malformed ISO9660 images with truncated path table entries could cause a panic. The path table entry's
dirNameLenfield could specify a length exceeding the remaining buffer, causing a slice bounds panic.Changes
i+8+dirNameLendoesn't exceed buffer length before slicingTest plan