From 8012495e177bbf67eba8915e266a6f897bedbd53 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Bollo?= Date: Tue, 12 Jan 2016 21:23:40 +0100 Subject: [PATCH] smack: fix cache of access labels MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Before this commit, removing the access property of a file, aka, the extended attribute security.SMACK64 was not effictive until the cache had been cleaned. This patch fixes that problem. Signed-off-by: José Bollo Acked-by: Casey Schaufler --- security/smack/smack_lsm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 2775d658b767..11f79013ae1f 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1442,9 +1442,13 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name) * Don't do anything special for these. * XATTR_NAME_SMACKIPIN * XATTR_NAME_SMACKIPOUT - * XATTR_NAME_SMACKEXEC */ - if (strcmp(name, XATTR_NAME_SMACK) == 0) + if (strcmp(name, XATTR_NAME_SMACK) == 0) { + struct super_block *sbp = d_backing_inode(dentry)->i_sb; + struct superblock_smack *sbsp = sbp->s_security; + + isp->smk_inode = sbsp->smk_default; + } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0) isp->smk_task = NULL; else if (strcmp(name, XATTR_NAME_SMACKMMAP) == 0) isp->smk_mmap = NULL; -- 2.20.1