Re: [BUG] #+CALL - permission error -bash

[Max Nikulin <manikulin@gmail.com>]

On 02/05/2024 21:55, Ihor Radchenko wrote:
> vitalij writes:
> 
>> in org-babel-sh-evaluate
>>   file:~/.emacs.d/elpa/org-9.6.28/ob-shell.el::300
>>
>> this do apply: (process-file "/tmp/babel-NfRG9P/sh-script-jmKNA4"
>>   "/tmp/babel-NfRG9P/sh-stdin-o3CEm5" #<buffer  *temp*> nil nil)
>>
>> I don't allow executables in /tmp folder!
> 
> Why do you think that it is a bug in Org mode?
> AFAIK, it is generally expected that anything can go into tmp.

There are various guides recommending noexec, however they warn that 
some issues should be expected.

Securing Debian Manual
- https://www.debian.org/doc/manuals/securing-debian-manual/ch04s10.en.html
   4.10. Mounting partitions the right way
- 
https://www.debian.org/doc/manuals/securing-debian-manual/checklist.en.html
   B.2. Configuration checklist

Security in Arch Linux wiki:
https://wiki.archlinux.org/title/Security#Mount_options
Mount options

>> How to make it this way:
>> 
>> (process-file "/use/bin/bash /tmp/babel-NfRG9P/sh-script-jmKNA4"
>>  "/tmp/babel-NfRG9P/sh-stdin-o3CEm5" #<buffer  *temp*> nil nil)
>> 
>> ???
>> 
>> It is like when you do:
>> ./a.sh
>> 
>> instead of:
>> bash a.sh

Likely you mean

(process-file "/usr/bin/bash"
  "/tmp/babel-NfRG9P/sh-stdin-o3CEm5" #<buffer  *temp*> nil 
"/tmp/babel-NfRG9P/sh-script-jmKNA4")

but it would ignore shebang. Try

#!/bin/sh -e
false
printf "Should not be executed\n"

So it is necessary to either drop :shebang or set temporary directory to 
a suitable path.