this post was submitted on 10 Aug 2024
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submitted 1 month ago* (last edited 1 month ago) by Rick_C137@programming.dev to c/linux@lemmy.ml
 

Hi,

I got FileA that have 640 a getfacl FileA give me

# file: FileA
# owner: me
# group: me
user::rw-
user:aUser:r--
group::r-x			#effective:r--
mask::r--
other::---

So it's give me the expected...

but when I do

chmod 600 aFile
getfacl aFile
...
user:aUser:r--		#effective:---
...
mask::---
...

Why suddenly aUser lost his ability to read the file !?!?!

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[–] ghjones@beehaw.org 4 points 1 month ago

ACLs on Linux can be a bit weird. If I remember correctly, the ACL mask corresponds to the group bit when using masks. Some more details here:

https://unix.stackexchange.com/questions/65888/setfacl-incorrectly-changes-group-permissions

[–] Rick_C137@programming.dev 2 points 1 month ago
setfacl -m m:r aFile
#re set the mask

solve the problem, but the question is: why the F**** this is happening !?