8d07cacde3
An out of bounds read access in the UTF-8 decoding can be triggered with a malformed file in the tool less. The access happens in the function is_utf8_well_formed due to a truncated multibyte character in the sample file. The bug does not crash less, it can only be made visible by running less with valgrind or compiling it with Address Sanitizer. Version 475 of less contains a fix for this issue. The file version.c contains some entry mentioning this issue (without any credit): - v475 3/2/15 Fix possible buffer overrun with invalid UTF-8 The fix is in the file line.c. We derive this patch from: https://blog.fuzzing-project.org/3-less-out-of-bounds-read-access-TFPA-0022014.html Thank Claire Robinson for validating it on Mageia 4 i586. Refer to: https://bugs.mageia.org/show_bug.cgi?id=15567 (From OE-Core master rev: 68994284f3c059b737bfc5afc2600ebd09bdf47f) (From OE-Core rev: 7195d219f7af2b94dffb87a94077ec98dacdcdb0) Signed-off-by: Junling Zheng <zhengjunling@huawei.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org
documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org
meta-yocto(-bsp): Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org
Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.