** Description changed: With trusty, /bin/ping relies on having extended attributes and kernel capabilities to gain the cap_net_raw+p capability. This allows removing the suid bit. However, the tarball cloud images do not preserve the extended attributes, and thus /bin/ping does not work on a system derived from them. Summary of problem per package: * lxc: ubuntu cloud template needs to extract * download template needs to extract with xattr flags * server side download creation tools need xattr flags * [unconfirmed] tarball caches need creation and extraction with xattr flags * tar: need the '--xattr' and '--acl' flags backported * maas: uec2roottgz needs to use xattr/acl flags * curtin: extraction needs to use xattr/acl flags. * cloud-image-build: needs to create -root.tar.gz with xattr/acl flags - SRU curtin - ========== - - [Impact] - - As the original bug report description mentions, curtin's extraction - needs to use xattr/acl flags. - - [Test Case] - - To reproduce this bug, use curtin extraction without the extended file - attributes. - - [Regression Potential] - - Since the patch for this bug fix *looks* to see if there are extended - file attributes, it should work in the event that they are there or are - not there or are. More specifically, if tar cmd supports xattrs, curtin - will return the required flags to extract them. This lowers the - probability of introducing a regression. + Related Bugs: + * bug 1382632: horizon insecure key file permissions + * bug 1386237: tar strange behavior with --acl + * bug 1313550: ping broken (xattrs lost in tar extraction)
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