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authorSeung-Woo Kim <sw0312.kim@samsung.com>2015-04-22 02:23:26 (GMT)
committerSeung-Woo Kim <sw0312.kim@samsung.com>2015-05-11 23:38:59 (GMT)
commit34d04efe393231c3d3474d2d64a542c92485571a (patch)
treecd9071c0c60705b695fdcd0b3d2a60ccdace8799
parent58a470c07dd3e22a1b30e7e459abad0213898e69 (diff)
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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. Change-Id: I2dca19baed08d1061e637160f653a86419a7ba6d Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
-rw-r--r--security/smack/smack_lsm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index f9f8932..c9573201 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1362,6 +1362,9 @@ static int smack_file_receive(struct file *file)
int may = 0;
struct smk_audit_info ad;
+ if (unlikely(IS_PRIVATE(file_inode(file))))
+ return 0;
+
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
/*