Smack: ignore private inode for smack_file_receive
The dmabuf fd can be shared between processes via unix domain
socket. The file of dmabuf fd is came from anon_inode. The inode
has no set and get xattr operations, so it can not be shared
between processes with smack. This patch fixes just to ignore
private inode including anon_inode for smack_file_receive.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 5eae42c..f09b8c7 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1658,6 +1658,9 @@
struct smk_audit_info ad;
struct inode *inode = file_inode(file);
+ if (unlikely(IS_PRIVATE(inode)))
+ return 0;
+
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
/*