On Fri, Apr 3, 2020 at 6:36 AM Richard Purdie
<richard.pur...@linuxfoundation.org> wrote:
>
> On Tue, 2020-03-31 at 12:57 +0200, Jan Luebbe wrote:
> > Hi,
> >
> > On Mon, 2020-01-20 at 17:10 +0000, Ross Burton wrote:
> > > On 20/01/2020 15:45, Khem Raj wrote:
> > > > pseudo needs some love since it alters syscalls which go out of
> > > > bounds
> > > > what is allowed by libseccomp until then pin your file version to
> > > > 5.37
> > > > in arch till a supported distro is affected by same problem. It
> > > > wont
> > > > be long better option is to fix pseudo
> > >
> > > That's not quite right. pseudo LD_PRELOADs itself into file, and
> > > makes
> > > syscalls which are not whitelisted in file's seccomp configuration.
> > >
> > > There's nothing pseudo can do to solve this.
> >
> > I stumbled across this thread when checking why libseccomp is not in
> > oe-core or meta-oe. It seems to me that pseudo could intercept the
> > seccomp(2) or libseccomps seccomp_* function calls and report them as
> > unsupported to simulate running on a kernel without seccomp support.
> >
> > What am I missing? :)
>
> I made a guess at a patch:
>
> http://git.yoctoproject.org/cgit.cgi/poky-contrib/commit/?h=rpurdie/t222&id=d675ff53d3ccbc6bd7db5f067d331bf3f94de5cd
>
> Just need someone with a system that can test it now!
>
seems pseudo still has same issue with archlinux latest file
(file-5.38-3) utility
Command '['file', '-b',
'/mnt/b/yoe/build/tmp/work/aarch64-yoe-linux/glibc/2.31+gitAUTOINC+71f2b249a2-r0/package/lib/libnss_db-2.31.so']'
died with <Signals.SIGSYS: 31>.: Traceback (most recent call last):
File "/mnt/b/yoe/sources/openembedded-core/meta/lib/oe/utils.py",
line 280, in run
ret = self._target(*self._args, **self._kwargs)
File "/mnt/b/yoe/sources/openembedded-core/meta/lib/oe/package.py",
line 74, in is_elf
result = subprocess.check_output(["file", "-b", path],
stderr=subprocess.STDOUT).decode("utf-8")
File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.8/subprocess.py", line 512, in run
raise CalledProcessError(retcode, process.args,
> Cheers,
>
> Richard
>
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