mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
0fbcaef6b4
In general, Git tries not to arbitrarily limit what it will store, and
there are currently no limits at all on the size of the path we find in
a tree. In theory you could have one that is gigabytes long.
But in practice this freedom is not really helping anybody, and is
potentially harmful:
1. Most operating systems have much lower limits for the size of a
single pathname component (e.g., on Linux you'll generally get
ENAMETOOLONG for anything over 255 bytes). And while you _can_ use
Git in a way that never touches the filesystem (manipulating the
index and trees directly), it's still probably not a good idea to
have gigantic tree names. Many operations load and traverse them,
so any clever Git-as-a-database scheme is likely to perform poorly
in that case.
2. We still have a lot of code which assumes strings are reasonably
sized, and I won't be at all surprised if you can trigger some
interesting integer overflows with gigantic pathnames. Stopping
malicious trees from entering the repository provides an extra line
of defense, protecting downstream code.
This patch implements an fsck check so that such trees can be rejected
by transfer.fsckObjects. I've picked a reasonably high maximum depth
here (4096) that hopefully should not bother anybody in practice. I've
also made it configurable, as an escape hatch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
180 lines
4.1 KiB
Text
180 lines
4.1 KiB
Text
`badDate`::
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(ERROR) Invalid date format in an author/committer line.
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`badDateOverflow`::
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(ERROR) Invalid date value in an author/committer line.
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`badEmail`::
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(ERROR) Invalid email format in an author/committer line.
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`badFilemode`::
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(INFO) A tree contains a bad filemode entry.
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`badName`::
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(ERROR) An author/committer name is empty.
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`badObjectSha1`::
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(ERROR) An object has a bad sha1.
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`badParentSha1`::
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(ERROR) A commit object has a bad parent sha1.
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`badTagName`::
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(INFO) A tag has an invalid format.
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`badTimezone`::
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(ERROR) Found an invalid time zone in an author/committer line.
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`badTree`::
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(ERROR) A tree cannot be parsed.
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`badTreeSha1`::
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(ERROR) A tree has an invalid format.
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`badType`::
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(ERROR) Found an invalid object type.
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`duplicateEntries`::
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(ERROR) A tree contains duplicate file entries.
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`emptyName`::
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(WARN) A path contains an empty name.
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`extraHeaderEntry`::
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(IGNORE) Extra headers found after `tagger`.
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`fullPathname`::
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(WARN) A path contains the full path starting with "/".
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`gitattributesBlob`::
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(ERROR) A non-blob found at `.gitattributes`.
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`gitattributesLarge`::
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(ERROR) The `.gitattributes` blob is too large.
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`gitattributesLineLength`::
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(ERROR) The `.gitattributes` blob contains too long lines.
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`gitattributesMissing`::
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(ERROR) Unable to read `.gitattributes` blob.
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`gitattributesSymlink`::
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(INFO) `.gitattributes` is a symlink.
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`gitignoreSymlink`::
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(INFO) `.gitignore` is a symlink.
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`gitmodulesBlob`::
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(ERROR) A non-blob found at `.gitmodules`.
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`gitmodulesLarge`::
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(ERROR) The `.gitmodules` file is too large to parse.
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`gitmodulesMissing`::
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(ERROR) Unable to read `.gitmodules` blob.
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`gitmodulesName`::
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(ERROR) A submodule name is invalid.
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`gitmodulesParse`::
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(INFO) Could not parse `.gitmodules` blob.
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`gitmodulesLarge`;
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(ERROR) `.gitmodules` blob is too large to parse.
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`gitmodulesPath`::
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(ERROR) `.gitmodules` path is invalid.
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`gitmodulesSymlink`::
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(ERROR) `.gitmodules` is a symlink.
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`gitmodulesUpdate`::
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(ERROR) Found an invalid submodule update setting.
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`gitmodulesUrl`::
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(ERROR) Found an invalid submodule url.
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`hasDot`::
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(WARN) A tree contains an entry named `.`.
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`hasDotdot`::
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(WARN) A tree contains an entry named `..`.
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`hasDotgit`::
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(WARN) A tree contains an entry named `.git`.
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`largePathname`::
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(WARN) A tree contains an entry with a very long path name. If
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the value of `fsck.largePathname` contains a colon, that value
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is used as the maximum allowable length (e.g., "warn:10" would
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complain about any path component of 11 or more bytes). The
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default value is 4096.
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`mailmapSymlink`::
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(INFO) `.mailmap` is a symlink.
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`missingAuthor`::
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(ERROR) Author is missing.
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`missingCommitter`::
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(ERROR) Committer is missing.
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`missingEmail`::
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(ERROR) Email is missing in an author/committer line.
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`missingNameBeforeEmail`::
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(ERROR) Missing name before an email in an author/committer line.
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`missingObject`::
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(ERROR) Missing `object` line in tag object.
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`missingSpaceBeforeDate`::
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(ERROR) Missing space before date in an author/committer line.
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`missingSpaceBeforeEmail`::
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(ERROR) Missing space before the email in author/committer line.
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`missingTag`::
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(ERROR) Unexpected end after `type` line in a tag object.
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`missingTagEntry`::
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(ERROR) Missing `tag` line in a tag object.
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`missingTaggerEntry`::
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(INFO) Missing `tagger` line in a tag object.
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`missingTree`::
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(ERROR) Missing `tree` line in a commit object.
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`missingType`::
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(ERROR) Invalid type value on the `type` line in a tag object.
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`missingTypeEntry`::
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(ERROR) Missing `type` line in a tag object.
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`multipleAuthors`::
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(ERROR) Multiple author lines found in a commit.
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`nulInCommit`::
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(WARN) Found a NUL byte in the commit object body.
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`nulInHeader`::
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(FATAL) NUL byte exists in the object header.
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`nullSha1`::
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(WARN) Tree contains entries pointing to a null sha1.
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`treeNotSorted`::
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(ERROR) A tree is not properly sorted.
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`unknownType`::
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(ERROR) Found an unknown object type.
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`unterminatedHeader`::
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(FATAL) Missing end-of-line in the object header.
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`zeroPaddedDate`::
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(ERROR) Found a zero padded date in an author/commiter line.
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`zeroPaddedFilemode`::
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(WARN) Found a zero padded filemode in a tree.
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