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bitbake.conf: mark all directories as safe for git to read

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Recent git releases containing [1] have an ownership check when opening
repositories, and refuse to open a repository if it is owned by a
different user.

This breaks any use of git in do_install, as that is executed by the
(fake) root user. Whilst not common, this does happen.

Setting the git configuration safe.directories=* disables this check, so
that git is usable in fakeroot tasks.  This can be set globally via the
internal environment variable GIT_CONFIG_PARAMETERS, we can't use
GIT_CONFIG_*_KEY/VALUE as that isn't present in all the releases which
have the ownership check.

We already set GIT_CEILING_DIRECTORIES to ensure that git doesn't
recurse up out of the work directory, so this isn't a security issue.

[1] https://github.com/git/git/commit/8959555cee7ec045958f9b6dd62e541affb7e7d9

(From OE-Core rev: 7a97531169d662fe0466db5992566bcdbe3a0d5f)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 8bed8e6993e7297bdcd68940aa0d47ef47120117)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton
2022-04-26 13:07:20 +01:00
committed by Richard Purdie
parent ce323dd1a9
commit 3f17ee4ebe
1 changed files with 8 additions and 0 deletions
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meta/conf/bitbake.conf
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@@ -730,10 +730,18 @@ export PKG_CONFIG_DISABLE_UNINSTALLED = "yes"
export PKG_CONFIG_SYSTEM_LIBRARY_PATH = "${base_libdir}:${libdir}"
export PKG_CONFIG_SYSTEM_INCLUDE_PATH = "${includedir}"
# Git configuration
# Don't allow git to chdir up past WORKDIR so that it doesn't detect the OE
# repository when building a recipe
export GIT_CEILING_DIRECTORIES = "${WORKDIR}"
# Treat all directories are safe, as during fakeroot tasks git will run as
# root so recent git releases (eg 2.30.3) will refuse to work on repositories. See
# https://github.com/git/git/commit/8959555cee7ec045958f9b6dd62e541affb7e7d9 for
# further details.
export GIT_CONFIG_PARAMETERS="'safe.directory=*'"
###
### Config file processing
###