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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>
This commit is contained in:
Seung-Woo Kim 2015-04-17 15:25:04 +09:00 committed by Casey Schaufler
parent 1ddd3b4e07
commit 9777582e8d
1 changed files with 3 additions and 0 deletions
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3
security/smack/smack_lsm.c
View File

@ -1658,6 +1658,9 @@ static int smack_file_receive(struct file *file)
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);
/*