diff options
| -rw-r--r-- | fs/super.c | 8 | ||||
| -rw-r--r-- | include/linux/lsm_hooks.h | 3 | ||||
| -rw-r--r-- | include/linux/security.h | 6 | ||||
| -rw-r--r-- | security/security.c | 5 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 10 | ||||
| -rw-r--r-- | security/smack/smack_lsm.c | 15 |
6 files changed, 13 insertions, 34 deletions
diff --git a/fs/super.c b/fs/super.c index d571527cb8b8..1f75fe312597 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1275,10 +1275,16 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data) smp_wmb(); sb->s_flags |= SB_BORN; - error = security_sb_kern_mount(sb, flags, &opts); + error = security_sb_set_mnt_opts(sb, &opts, 0, NULL); if (error) goto out_sb; + if (!(flags & MS_KERNMOUNT)) { + error = security_sb_kern_mount(sb); + if (error) + goto out_sb; + } + /* * filesystems should never set s_maxbytes larger than MAX_LFS_FILESIZE * but s_maxbytes was an unsigned long long for many releases. Throw diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index e1a12a1e2b32..f432123af0e3 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1464,8 +1464,7 @@ union security_list_options { int (*sb_copy_data)(char *orig, char *copy); int (*sb_remount)(struct super_block *sb, struct security_mnt_opts *opts); - int (*sb_kern_mount)(struct super_block *sb, int flags, - struct security_mnt_opts *opts); + int (*sb_kern_mount)(struct super_block *sb); int (*sb_show_options)(struct seq_file *m, struct super_block *sb); int (*sb_statfs)(struct dentry *dentry); int (*sb_mount)(const char *dev_name, const struct path *path, diff --git a/include/linux/security.h b/include/linux/security.h index 262e59838803..d00093363570 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -250,8 +250,7 @@ int security_sb_alloc(struct super_block *sb); void security_sb_free(struct super_block *sb); int security_sb_eat_lsm_opts(char *options, struct security_mnt_opts *opts); int security_sb_remount(struct super_block *sb, struct security_mnt_opts *opts); -int security_sb_kern_mount(struct super_block *sb, int flags, - struct security_mnt_opts *opts); +int security_sb_kern_mount(struct super_block *sb); int security_sb_show_options(struct seq_file *m, struct super_block *sb); int security_sb_statfs(struct dentry *dentry); int security_sb_mount(const char *dev_name, const struct path *path, @@ -568,8 +567,7 @@ static inline int security_sb_remount(struct super_block *sb, return 0; } -static inline int security_sb_kern_mount(struct super_block *sb, int flags, - struct security_mnt_opts *opts) +static inline int security_sb_kern_mount(struct super_block *sb) { return 0; } diff --git a/security/security.c b/security/security.c index 02c656dd5c0c..afb05646d41b 100644 --- a/security/security.c +++ b/security/security.c @@ -405,10 +405,9 @@ int security_sb_remount(struct super_block *sb, return call_int_hook(sb_remount, 0, sb, opts); } -int security_sb_kern_mount(struct super_block *sb, int flags, - struct security_mnt_opts *opts) +int security_sb_kern_mount(struct super_block *sb) { - return call_int_hook(sb_kern_mount, 0, sb, flags, opts); + return call_int_hook(sb_kern_mount, 0, sb); } int security_sb_show_options(struct seq_file *m, struct super_block *sb) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index ba3e2917bd24..59b164d7134d 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2874,18 +2874,10 @@ out_bad_option: return -EINVAL; } -static int selinux_sb_kern_mount(struct super_block *sb, int flags, - struct security_mnt_opts *opts) +static int selinux_sb_kern_mount(struct super_block *sb) { const struct cred *cred = current_cred(); struct common_audit_data ad; - int rc = selinux_set_mnt_opts(sb, opts, 0, NULL); - if (rc) - return rc; - - /* Allow all mounts performed by the kernel */ - if (flags & MS_KERNMOUNT) - return 0; ad.type = LSM_AUDIT_DATA_DENTRY; ad.u.dentry = sb->s_root; diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 1d465ae3d11c..50e6e88bfe70 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -852,20 +852,6 @@ static int smack_set_mnt_opts(struct super_block *sb, } /** - * smack_sb_kern_mount - Smack specific mount processing - * @sb: the file system superblock - * @flags: the mount flags - * @data: the smack mount options - * - * Returns 0 on success, an error code on failure - */ -static int smack_sb_kern_mount(struct super_block *sb, int flags, - struct security_mnt_opts *opts) -{ - return smack_set_mnt_opts(sb, opts, 0, NULL); -} - -/** * smack_sb_statfs - Smack check on statfs * @dentry: identifies the file system in question * @@ -4652,7 +4638,6 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(sb_alloc_security, smack_sb_alloc_security), LSM_HOOK_INIT(sb_free_security, smack_sb_free_security), LSM_HOOK_INIT(sb_copy_data, smack_sb_copy_data), - LSM_HOOK_INIT(sb_kern_mount, smack_sb_kern_mount), LSM_HOOK_INIT(sb_statfs, smack_sb_statfs), LSM_HOOK_INIT(sb_set_mnt_opts, smack_set_mnt_opts), LSM_HOOK_INIT(sb_parse_opts_str, smack_parse_opts_str), |