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e1415dc3
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2022-02-11T11:02:00
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diff_file: test empty workdir file grows after obtaining a diff
This test was also provided by @jorio
https://github.com/libgit2/libgit2/pull/6208#issuecomment-1034072050
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9aade20b
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2022-02-09T19:04:52
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diff_file: test workdir file becomes empty after obtaining a diff
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0a0cd67d
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2022-02-08T20:18:15
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diff_file: fix crash if size of diffed file changes in workdir
"diff_file_content_load_workdir_file()" maps a file from the workdir
into memory. It uses git_diff_file.size to determine the size of the
memory mapping.
If this value goes stale, the mmaped area would be sized incorrectly.
This could occur if an external program changes the contents of the
file after libgit2 had cached its size. This used to segfault if the
file becomes smaller (mmaped area too large).
This patch causes diff_file_content_load_workdir_file to fail without
crashing if it detects that the file size has changed.
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