forked from luck/tmp_suning_uos_patched
security: remove dead hook task_setuid
Unused hook. Remove. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
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0968d0060a
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43ed8c3b45
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@ -674,18 +674,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
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* userspace to load a kernel module with the given name.
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* @kmod_name name of the module requested by the kernel
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* Return 0 if successful.
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* @task_setuid:
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* Check permission before setting one or more of the user identity
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* attributes of the current process. The @flags parameter indicates
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* which of the set*uid system calls invoked this hook and how to
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* interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
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* definitions at the beginning of this file for the @flags values and
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* their meanings.
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* @id0 contains a uid.
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* @id1 contains a uid.
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* @id2 contains a uid.
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* @flags contains one of the LSM_SETID_* values.
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* Return 0 if permission is granted.
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* @task_fix_setuid:
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* Update the module's state after setting one or more of the user
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* identity attributes of the current process. The @flags parameter
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@ -1536,7 +1524,6 @@ struct security_operations {
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int (*kernel_act_as)(struct cred *new, u32 secid);
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int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
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int (*kernel_module_request)(char *kmod_name);
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int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
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int (*task_fix_setuid) (struct cred *new, const struct cred *old,
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int flags);
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int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
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@ -1793,7 +1780,6 @@ void security_transfer_creds(struct cred *new, const struct cred *old);
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int security_kernel_act_as(struct cred *new, u32 secid);
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int security_kernel_create_files_as(struct cred *new, struct inode *inode);
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int security_kernel_module_request(char *kmod_name);
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int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
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int security_task_fix_setuid(struct cred *new, const struct cred *old,
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int flags);
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int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
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@ -2330,12 +2316,6 @@ static inline int security_kernel_module_request(char *kmod_name)
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return 0;
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}
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static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
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int flags)
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{
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return 0;
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}
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static inline int security_task_fix_setuid(struct cred *new,
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const struct cred *old,
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int flags)
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15
kernel/sys.c
15
kernel/sys.c
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@ -609,10 +609,6 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
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return -ENOMEM;
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old = current_cred();
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retval = security_task_setuid(ruid, euid, (uid_t)-1, LSM_SETID_RE);
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if (retval)
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goto error;
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retval = -EPERM;
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if (ruid != (uid_t) -1) {
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new->uid = ruid;
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@ -674,10 +670,6 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
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return -ENOMEM;
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old = current_cred();
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retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_ID);
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if (retval)
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goto error;
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retval = -EPERM;
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if (capable(CAP_SETUID)) {
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new->suid = new->uid = uid;
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@ -718,9 +710,6 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
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if (!new)
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return -ENOMEM;
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retval = security_task_setuid(ruid, euid, suid, LSM_SETID_RES);
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if (retval)
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goto error;
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old = current_cred();
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retval = -EPERM;
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@ -850,9 +839,6 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
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old = current_cred();
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old_fsuid = old->fsuid;
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if (security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS) < 0)
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goto error;
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if (uid == old->uid || uid == old->euid ||
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uid == old->suid || uid == old->fsuid ||
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capable(CAP_SETUID)) {
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@ -863,7 +849,6 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
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}
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}
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error:
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abort_creds(new);
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return old_fsuid;
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@ -392,11 +392,6 @@ static int cap_kernel_module_request(char *kmod_name)
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return 0;
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}
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static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
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{
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return 0;
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}
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static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
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{
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return 0;
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@ -972,7 +967,6 @@ void security_fixup_ops(struct security_operations *ops)
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set_to_cap_if_null(ops, kernel_act_as);
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set_to_cap_if_null(ops, kernel_create_files_as);
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set_to_cap_if_null(ops, kernel_module_request);
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set_to_cap_if_null(ops, task_setuid);
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set_to_cap_if_null(ops, task_fix_setuid);
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set_to_cap_if_null(ops, task_setgid);
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set_to_cap_if_null(ops, task_setpgid);
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@ -732,11 +732,6 @@ int security_kernel_module_request(char *kmod_name)
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return security_ops->kernel_module_request(kmod_name);
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}
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int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
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{
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return security_ops->task_setuid(id0, id1, id2, flags);
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}
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int security_task_fix_setuid(struct cred *new, const struct cred *old,
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int flags)
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{
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