ext3: Don't clear SGID when inheriting ACLs

Based on Jan Kara's fix for ext2 (commit a992f2d38e4c), from which the
following description is taken:

> When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit
> set, DIR1 is expected to have SGID bit set (and owning group equal to
> the owning group of 'DIR0'). However when 'DIR0' also has some default
> ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on
> 'DIR1' to get cleared if user is not member of the owning group.
>
> Fix the problem by creating __ext2_set_acl() function that does not call
> posix_acl_update_mode() and use it when inheriting ACLs. That prevents
> SGID bit clearing and the mode has been properly set by
> posix_acl_create() anyway.

Fixes: 073931017b49 ("posix_acl: Clear SGID bit when setting file permissions")
Cc: linux-ext4@vger.kernel.org
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

0 files changed, 0 insertions, 0 deletions