Hello,
On 2018-11-16 16:41, Stuart D. Gathman wrote:
It's not very elegant, but the quick and dirty solution is to use sudo
probably you had not yet read that far in this thread, but I already
wrote that sudo does not work when called from pam_exec.
To get the stderr and stdout results of sudo, I wrote a shell script
wrapper around it, and the results are (maybe because sudo itself uses
PAM?):
sudo: unable to change to root gid: Operation not permitted
sudo: unable to initialize policy plugin
Someone wrote that he assumes that pam_exec ignores the setuid-bit in
the file permissions, but that is obviously wrong, as this whole thread
is about why lvcreate, when being called from my setuid-root-binary, has
permission problems though all three (real, effective and saved) UIDs
are 0 (and of course I checked that they really are 0).
Regards
Christoph
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