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mark files with out-of-order ext4 extents as corrupted #15

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joachimmetz opened this issue Dec 22, 2024 · 0 comments
Open

mark files with out-of-order ext4 extents as corrupted #15

joachimmetz opened this issue Dec 22, 2024 · 0 comments
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joachimmetz commented Dec 22, 2024 •
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Test data generated with https://github.com/dfirlabs/ext-specimens, manually changed logical block numbers of /testdir1/TestFile2 to reverse the order of the logical block numbers

Native Linux implementation

md5sum: /testdir1/TestFile2: Structure needs cleaning

ext4_ext_check_inode:520: inode #15: comm md5sum: pblk 4065 bad header/extent: invalid extent entries - magic f30a, entries 2, max 4(4), depth 0(0)
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