mirror of
https://github.com/torvalds/linux.git
synced 2024-09-20 15:03:04 +00:00
selinux: only filter copy-up xattrs following initialization
Extended attribute copy-up functionality added via 19472b69d6
("selinux: Implementation for inode_copy_up_xattr() hook") sees
"security.selinux" contexts dropped, instead relying on contexts
applied via the inode_copy_up() hook.
When copy-up takes place during early boot, prior to selinux
initialization / policy load, the context stripping can be unwanted
and unexpected.
With this change, filtering of "security.selinux" xattrs will only occur
after selinux initialization.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
parent
bfda63fa22
commit
7c655bee5c
|
@ -3533,9 +3533,10 @@ static int selinux_inode_copy_up_xattr(const char *name)
|
||||||
{
|
{
|
||||||
/* The copy_up hook above sets the initial context on an inode, but we
|
/* The copy_up hook above sets the initial context on an inode, but we
|
||||||
* don't then want to overwrite it by blindly copying all the lower
|
* don't then want to overwrite it by blindly copying all the lower
|
||||||
* xattrs up. Instead, we have to filter out SELinux-related xattrs.
|
* xattrs up. Instead, filter out SELinux-related xattrs following
|
||||||
|
* policy load.
|
||||||
*/
|
*/
|
||||||
if (strcmp(name, XATTR_NAME_SELINUX) == 0)
|
if (selinux_initialized() && strcmp(name, XATTR_NAME_SELINUX) == 0)
|
||||||
return 1; /* Discard */
|
return 1; /* Discard */
|
||||||
/*
|
/*
|
||||||
* Any other attribute apart from SELINUX is not claimed, supported
|
* Any other attribute apart from SELINUX is not claimed, supported
|
||||||
|
|
Loading…
Reference in New Issue
Block a user