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Type:
Bug
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 1.9.6, 1.9.7
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Fix Version/s: 1.9.9
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Component/s: libsvn_fs_fs
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Labels:None
As discussed
Email to dev@, from Philip Martin, 2018-03-03, "Re: SHA-1 collision in repository?", archived at mail-archives.apache.org, svn.haxx.se
There is an error in the checksum code added to 1.9.7 1.9.6 to detect SHA1 collisions. The expanded length is calculated incorrectly and when the delta length is a multiple of 16K the checksum calculation stops early and fails.
Symptom: Commits fail with a false "Filesystem is corrupt" error.