[Bug 214705] execve(2) omits EACCES due to capabilities

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=214705

--- Comment #2 from Daniel Speyer (dspeyer@gmail.com) ---
dspeyer@dspeyerheim:~$ sudo docker run -it ubuntu /bin/bash
root@8b839371814b:/# apt-get update > /dev/null
root@8b839371814b:/# apt-get install libcap2-bin -y >/dev/null
debconf: delaying package configuration, since apt-utils is not installed
root@8b839371814b:/# setcap cap_ipc_lock=+eip  /usr/bin/ls
root@8b839371814b:/# ls
bash: /usr/bin/ls: Operation not permitted

I've confirmed with a small c program that bash is passing on execve's
error message correctly, but copy pasting the c program would be
inconvenient right now.

On Fri, Oct 15, 2021 at 6:10 PM <bugzilla-daemon@bugzilla.kernel.org> wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=214705
>
> Alejandro Colomar (man-pages) (alx.manpages@gmail.com) changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>                  CC|                            |alx.manpages@gmail.com
>
> --- Comment #1 from Alejandro Colomar (man-pages) (alx.manpages@gmail.com)
> ---
> Hello Daniel,
>
> Tracking the paths that can lead to an error is difficult.  Could you
> share the
> results of your investigation?  I'd like to check it in the source code.
>
> Thanks,
>
> Alex
>
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