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| author | Seung-Woo Kim <sw0312.kim@samsung.com> | 2015-04-17 15:25:04 +0900 |
|---|---|---|
| committer | Casey Schaufler <casey@schaufler-ca.com> | 2015-05-15 08:35:50 -0700 |
| commit | 9777582e8d604f69ce3a93805065e451487e26b4 (patch) | |
| tree | 0f51c71806352e7ee311b16dfcc2485ff1166938 /security/smack | |
| parent | 1ddd3b4e07a4be9fe3f1ce2441b01859154f4358 (diff) | |
| download | lwn-9777582e8d604f69ce3a93805065e451487e26b4.tar.gz lwn-9777582e8d604f69ce3a93805065e451487e26b4.zip | |
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>
Diffstat (limited to 'security/smack')
| -rw-r--r-- | security/smack/smack_lsm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 5eae42c8d0d5..f09b8c7cf1e7 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -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); /* |