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authorKees Cook <keescook@chromium.org>2012-01-07 10:41:04 -0800
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-17 16:17:03 -0500
commit41fdc3054e23e3229edea27053522fe052d02ec2 (patch)
tree00bb62aef2288df07eae059f344d11d32b004f69 /security/lsm_audit.c
parent5afb8a3f96573f7ea018abb768f5b6ebe1a6c1a4 (diff)
download96b-common-41fdc3054e23e3229edea27053522fe052d02ec2.tar.gz
audit: treat s_id as an untrusted string
The use of s_id should go through the untrusted string path, just to be extra careful. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'security/lsm_audit.c')
-rw-r--r--security/lsm_audit.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 7bd6f138236b..fc41b7cccb53 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -235,10 +235,11 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_d_path(ab, "path=", &a->u.path);
inode = a->u.path.dentry->d_inode;
- if (inode)
- audit_log_format(ab, " dev=%s ino=%lu",
- inode->i_sb->s_id,
- inode->i_ino);
+ if (inode) {
+ audit_log_format(ab, " dev=");
+ audit_log_untrustedstring(ab, inode->i_sb->s_id);
+ audit_log_format(ab, " ino=%lu", inode->i_ino);
+ }
break;
}
case LSM_AUDIT_DATA_DENTRY: {
@@ -248,10 +249,11 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_untrustedstring(ab, a->u.dentry->d_name.name);
inode = a->u.dentry->d_inode;
- if (inode)
- audit_log_format(ab, " dev=%s ino=%lu",
- inode->i_sb->s_id,
- inode->i_ino);
+ if (inode) {
+ audit_log_format(ab, " dev=");
+ audit_log_untrustedstring(ab, inode->i_sb->s_id);
+ audit_log_format(ab, " ino=%lu", inode->i_ino);
+ }
break;
}
case LSM_AUDIT_DATA_INODE: {
@@ -266,8 +268,9 @@ static void dump_common_audit_data(struct audit_buffer *ab,
dentry->d_name.name);
dput(dentry);
}
- audit_log_format(ab, " dev=%s ino=%lu", inode->i_sb->s_id,
- inode->i_ino);
+ audit_log_format(ab, " dev=");
+ audit_log_untrustedstring(ab, inode->i_sb->s_id);
+ audit_log_format(ab, " ino=%lu", inode->i_ino);
break;
}
case LSM_AUDIT_DATA_TASK: