"setfacl --restore" fails

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux (RHEL) 6.8, 7.4
  • acl

Issue

Command setfacl --restore works fine in some directories and fails in others:

# setfacl --restore /path/to/a/file
setfacl: /path/to/a/file: Malformed access ACL `user::rwx,user:example:rwx,group::rwx,group:example:rwx,other::---': Missing or wrong entry at entry 28

Resolution

Update acl to:
- acl-2.2.49-7.el6_9.1 released with Advisory RHBA-2017:2501 for RHEL 6
- acl-2.2.51-14.el7 released with Advisory RHBA-2018:0772 for RHEL 7

Root Cause

When using setfacl --restore <aclfile> command, the command may fail when setting ACL because of the reading of unitialized memory, causing unexpected code path to be executed.

Backporting upstream commit 33f01b5d fixed the issue.

  • Component
  • acl

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