diff options
| author | Kees Cook <keescook@chromium.org> | 2012-01-07 10:41:04 -0800 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-17 16:17:03 -0500 |
| commit | 41fdc3054e23e3229edea27053522fe052d02ec2 (patch) | |
| tree | 00bb62aef2288df07eae059f344d11d32b004f69 /security/lsm_audit.c | |
| parent | 5afb8a3f96573f7ea018abb768f5b6ebe1a6c1a4 (diff) | |
| download | lwn-41fdc3054e23e3229edea27053522fe052d02ec2.tar.gz lwn-41fdc3054e23e3229edea27053522fe052d02ec2.zip | |
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.c | 23 |
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: |