diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/apparmor/lsm.c | 13 | ||||
| -rw-r--r-- | security/integrity/ima/ima_appraise.c | 2 | ||||
| -rw-r--r-- | security/integrity/ima/ima_main.c | 14 | ||||
| -rw-r--r-- | security/security.c | 6 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 19 | ||||
| -rw-r--r-- | security/smack/smack.h | 16 | ||||
| -rw-r--r-- | security/smack/smack_lsm.c | 9 |
7 files changed, 28 insertions, 51 deletions
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index 0d6585056f3d..4f0eecb67dde 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -728,7 +728,14 @@ static void apparmor_bprm_committed_creds(struct linux_binprm *bprm) return; } -static void apparmor_task_getsecid(struct task_struct *p, u32 *secid) +static void apparmor_current_getsecid_subj(u32 *secid) +{ + struct aa_label *label = aa_get_current_label(); + *secid = label->secid; + aa_put_label(label); +} + +static void apparmor_task_getsecid_obj(struct task_struct *p, u32 *secid) { struct aa_label *label = aa_get_task_label(p); *secid = label->secid; @@ -1252,8 +1259,8 @@ static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(task_free, apparmor_task_free), LSM_HOOK_INIT(task_alloc, apparmor_task_alloc), - LSM_HOOK_INIT(task_getsecid_subj, apparmor_task_getsecid), - LSM_HOOK_INIT(task_getsecid_obj, apparmor_task_getsecid), + LSM_HOOK_INIT(current_getsecid_subj, apparmor_current_getsecid_subj), + LSM_HOOK_INIT(task_getsecid_obj, apparmor_task_getsecid_obj), LSM_HOOK_INIT(task_setrlimit, apparmor_task_setrlimit), LSM_HOOK_INIT(task_kill, apparmor_task_kill), diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index dbba51583e7c..17232bbfb9f9 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -76,7 +76,7 @@ int ima_must_appraise(struct user_namespace *mnt_userns, struct inode *inode, if (!ima_appraise) return 0; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); return ima_match_policy(mnt_userns, inode, current_cred(), secid, func, mask, IMA_APPRAISE | IMA_HASH, NULL, NULL, NULL, NULL); diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 465865412100..8c6e4514d494 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -408,7 +408,7 @@ int ima_file_mmap(struct file *file, unsigned long prot) u32 secid; if (file && (prot & PROT_EXEC)) { - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); return process_measurement(file, current_cred(), secid, NULL, 0, MAY_EXEC, MMAP_CHECK); } @@ -446,7 +446,7 @@ int ima_file_mprotect(struct vm_area_struct *vma, unsigned long prot) !(prot & PROT_EXEC) || (vma->vm_flags & VM_EXEC)) return 0; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); inode = file_inode(vma->vm_file); action = ima_get_action(file_mnt_user_ns(vma->vm_file), inode, current_cred(), secid, MAY_EXEC, MMAP_CHECK, @@ -487,7 +487,7 @@ int ima_bprm_check(struct linux_binprm *bprm) int ret; u32 secid; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); ret = process_measurement(bprm->file, current_cred(), secid, NULL, 0, MAY_EXEC, BPRM_CHECK); if (ret) @@ -512,7 +512,7 @@ int ima_file_check(struct file *file, int mask) { u32 secid; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); return process_measurement(file, current_cred(), secid, NULL, 0, mask & (MAY_READ | MAY_WRITE | MAY_EXEC | MAY_APPEND), FILE_CHECK); @@ -709,7 +709,7 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id, /* Read entire file for all partial reads. */ func = read_idmap[read_id] ?: FILE_CHECK; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); return process_measurement(file, current_cred(), secid, NULL, 0, MAY_READ, func); } @@ -752,7 +752,7 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size, } func = read_idmap[read_id] ?: FILE_CHECK; - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); return process_measurement(file, current_cred(), secid, buf, size, MAY_READ, func); } @@ -905,7 +905,7 @@ int process_buffer_measurement(struct user_namespace *mnt_userns, * buffer measurements. */ if (func) { - security_task_getsecid_subj(current, &secid); + security_current_getsecid_subj(&secid); action = ima_get_action(mnt_userns, inode, current_cred(), secid, 0, func, &pcr, &template, func_data, NULL); diff --git a/security/security.c b/security/security.c index c88167a414b4..edb922b8bf4a 100644 --- a/security/security.c +++ b/security/security.c @@ -1808,12 +1808,12 @@ int security_task_getsid(struct task_struct *p) return call_int_hook(task_getsid, 0, p); } -void security_task_getsecid_subj(struct task_struct *p, u32 *secid) +void security_current_getsecid_subj(u32 *secid) { *secid = 0; - call_void_hook(task_getsecid_subj, p, secid); + call_void_hook(current_getsecid_subj, secid); } -EXPORT_SYMBOL(security_task_getsecid_subj); +EXPORT_SYMBOL(security_current_getsecid_subj); void security_task_getsecid_obj(struct task_struct *p, u32 *secid) { diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 62d30c0a30c2..726175254f60 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -230,19 +230,6 @@ static inline u32 cred_sid(const struct cred *cred) } /* - * get the subjective security ID of a task - */ -static inline u32 task_sid_subj(const struct task_struct *task) -{ - u32 sid; - - rcu_read_lock(); - sid = cred_sid(rcu_dereference(task->cred)); - rcu_read_unlock(); - return sid; -} - -/* * get the objective security ID of a task */ static inline u32 task_sid_obj(const struct task_struct *task) @@ -4205,9 +4192,9 @@ static int selinux_task_getsid(struct task_struct *p) PROCESS__GETSESSION, NULL); } -static void selinux_task_getsecid_subj(struct task_struct *p, u32 *secid) +static void selinux_current_getsecid_subj(u32 *secid) { - *secid = task_sid_subj(p); + *secid = current_sid(); } static void selinux_task_getsecid_obj(struct task_struct *p, u32 *secid) @@ -7159,7 +7146,7 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(task_setpgid, selinux_task_setpgid), LSM_HOOK_INIT(task_getpgid, selinux_task_getpgid), LSM_HOOK_INIT(task_getsid, selinux_task_getsid), - LSM_HOOK_INIT(task_getsecid_subj, selinux_task_getsecid_subj), + LSM_HOOK_INIT(current_getsecid_subj, selinux_current_getsecid_subj), LSM_HOOK_INIT(task_getsecid_obj, selinux_task_getsecid_obj), LSM_HOOK_INIT(task_setnice, selinux_task_setnice), LSM_HOOK_INIT(task_setioprio, selinux_task_setioprio), diff --git a/security/smack/smack.h b/security/smack/smack.h index 99c3422596ab..fc837dcebf96 100644 --- a/security/smack/smack.h +++ b/security/smack/smack.h @@ -389,22 +389,6 @@ static inline struct smack_known *smk_of_task(const struct task_smack *tsp) return tsp->smk_task; } -static inline struct smack_known *smk_of_task_struct_subj( - const struct task_struct *t) -{ - struct smack_known *skp; - const struct cred *cred; - - rcu_read_lock(); - - cred = rcu_dereference(t->cred); - skp = smk_of_task(smack_cred(cred)); - - rcu_read_unlock(); - - return skp; -} - static inline struct smack_known *smk_of_task_struct_obj( const struct task_struct *t) { diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index efd35b07c7f8..14b279cc75c9 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -2067,15 +2067,14 @@ static int smack_task_getsid(struct task_struct *p) } /** - * smack_task_getsecid_subj - get the subjective secid of the task - * @p: the task + * smack_current_getsecid_subj - get the subjective secid of the current task * @secid: where to put the result * * Sets the secid to contain a u32 version of the task's subjective smack label. */ -static void smack_task_getsecid_subj(struct task_struct *p, u32 *secid) +static void smack_current_getsecid_subj(u32 *secid) { - struct smack_known *skp = smk_of_task_struct_subj(p); + struct smack_known *skp = smk_of_current(); *secid = skp->smk_secid; } @@ -4807,7 +4806,7 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(task_setpgid, smack_task_setpgid), LSM_HOOK_INIT(task_getpgid, smack_task_getpgid), LSM_HOOK_INIT(task_getsid, smack_task_getsid), - LSM_HOOK_INIT(task_getsecid_subj, smack_task_getsecid_subj), + LSM_HOOK_INIT(current_getsecid_subj, smack_current_getsecid_subj), LSM_HOOK_INIT(task_getsecid_obj, smack_task_getsecid_obj), LSM_HOOK_INIT(task_setnice, smack_task_setnice), LSM_HOOK_INIT(task_setioprio, smack_task_setioprio), |