Tavis has just reported, that he was recently trying to track down a
reproducible crash in a compressor. Believe it or not, it really was a
bug in zlib-1.2.11 when compressing (not decompressing!) certain inputs.
Tavis has reported it upstream, but it turns out the issue has been
public since 2018, but the patch never made it into a release. As far as
he knows, nobody ever assigned it a CVE.
Suggested-by: Tavis Ormandy <taviso@gmail.com>
References: https://www.openwall.com/lists/oss-security/2022/03/24/1
Signed-off-by: Petr Štetiar <ynezz@true.cz>
The buildroot pkg-config (in staging_dir/host/bin) overrides the prefix
and exec_prefix variables in *.pc files, to supply the correct
(buildroot) paths for callers. If other variables are not defined
relative to prefix and exec_prefix, then the returned values will be
incorrect.
The default zlib.pc file generated by cmake contains absolute paths.
This patches the file to use relative paths (relative to ${prefix} and
${exec_prefix}).
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This allows us to link the other tools against our libz and we do not
need the system zlib any more.
Only the static linked library is copied to the staging directory so we
have a statically linked library on all systems and not only on Linux.
This also adds the new dependencies of the packages which are depending
on zlib.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Instead of inferring the availability of NEON support from the target
optimization flags, use a preprocessor test to decide whether to enable
ARMv8 NEON optimizations.
Fixes the following build error spotted by the mediatek/32 buildbot:
[ 26%] Building C object CMakeFiles/zlib.dir/contrib/arm/inflate.o
In file included from .../zlib-1.2.11/contrib/arm/chunkcopy.h:10:0,
from .../zlib-1.2.11/contrib/arm/inflate.c:87:
.../arm_neon.h:31:2: error: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
#error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
^
In file included from .../zlib-1.2.11/contrib/arm/inflate.c:87:0:
.../zlib-1.2.11/contrib/arm/chunkcopy.h:18:9: error: unknown type name 'uint8x16_t'
typedef uint8x16_t chunkcopy_chunk_t;
^
[...]
CMakeFiles/zlib.dir/build.make:302: recipe for target 'CMakeFiles/zlib.dir/contrib/arm/inflate.o' failed
Fixes: 3acecba520 "package/libs/zlib: Add ARM and NEON optimizations"
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Some packages such as Python/Python3 (host pip/pip3) needs this
to compile.
More detailed explanation provided by Alexandru:
"i need the zlib/host for Python/Python3 ; because, it seems the
host pip/pip3 needs this to work ; i suspect in older versions
this worked, because some of the host's build env would be used
in the build, and then the zlib-dev from the host distro would
be used ; now, the host-build does not seem to have any
-I/usr/include stuff, which is good
and it also seems that Python/Python3 does not like it if the
zlib-dev package is too old, so using this zlib/host would be
good for this as well"
Source:
https://github.com/lede-project/source/pull/1329#issuecomment-351055861
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Add option to use O3 optimization as not all devices have
space constraints. This option is default using GCC in upstream
but isn't in the CMake makefile for some reason.
Source: https://github.com/madler/zlib/blob/master/configure#L170
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
CPE ids helps to tracks CVE in packages.
https://cpe.mitre.org/specification/
Thanks to swalker for CPE to package mapping and
keep tracking CVEs.
Acked-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Update to 1.2.11 as suggested by upstream
Also add SF as primary source and main site as fallback
Note: SF doesn't carry the 1.2.11 update yet.
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
* Fix bug in deflate_stored() for zero-length input
* Fix bug in gzwrite.c that produced corrupt gzip files
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
The patch adds a new package zlib-dev. It contains all files needed for
compiling a program using the zlib library:
/usr/include/zconf.h
/usr/include/zlib.h
/usr/lib/libz.a
/usr/lib/pkgconfig/zlib.pc
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
SVN-Revision: 48151
