diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/commoncap.c | 29 | ||||
| -rw-r--r-- | security/security.c | 18 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 10 |
3 files changed, 21 insertions, 36 deletions
diff --git a/security/commoncap.c b/security/commoncap.c index 8283271f076..e3f36ef629f 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -96,15 +96,6 @@ int cap_capget (struct task_struct *target, kernel_cap_t *effective, #ifdef CONFIG_SECURITY_FILE_CAPABILITIES -static inline int cap_block_setpcap(struct task_struct *target) -{ - /* - * No support for remote process capability manipulation with - * filesystem capability support. - */ - return (target != current); -} - static inline int cap_inh_is_capped(void) { /* @@ -119,7 +110,6 @@ static inline int cap_limit_ptraced_target(void) { return 1; } #else /* ie., ndef CONFIG_SECURITY_FILE_CAPABILITIES */ -static inline int cap_block_setpcap(struct task_struct *t) { return 0; } static inline int cap_inh_is_capped(void) { return 1; } static inline int cap_limit_ptraced_target(void) { @@ -128,21 +118,18 @@ static inline int cap_limit_ptraced_target(void) #endif /* def CONFIG_SECURITY_FILE_CAPABILITIES */ -int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, +int cap_capset_check (kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { - if (cap_block_setpcap(target)) { - return -EPERM; - } if (cap_inh_is_capped() && !cap_issubset(*inheritable, - cap_combine(target->cap_inheritable, + cap_combine(current->cap_inheritable, current->cap_permitted))) { /* incapable of using this inheritable set */ return -EPERM; } if (!cap_issubset(*inheritable, - cap_combine(target->cap_inheritable, + cap_combine(current->cap_inheritable, current->cap_bset))) { /* no new pI capabilities outside bounding set */ return -EPERM; @@ -150,7 +137,7 @@ int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, /* verify restrictions on target's new Permitted set */ if (!cap_issubset (*permitted, - cap_combine (target->cap_permitted, + cap_combine (current->cap_permitted, current->cap_permitted))) { return -EPERM; } @@ -163,12 +150,12 @@ int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, return 0; } -void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, +void cap_capset_set (kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { - target->cap_effective = *effective; - target->cap_inheritable = *inheritable; - target->cap_permitted = *permitted; + current->cap_effective = *effective; + current->cap_inheritable = *inheritable; + current->cap_permitted = *permitted; } static inline void bprm_clear_caps(struct linux_binprm *bprm) diff --git a/security/security.c b/security/security.c index 346f21e0ec2..dca37381e2a 100644 --- a/security/security.c +++ b/security/security.c @@ -145,20 +145,18 @@ int security_capget(struct task_struct *target, return security_ops->capget(target, effective, inheritable, permitted); } -int security_capset_check(struct task_struct *target, - kernel_cap_t *effective, - kernel_cap_t *inheritable, - kernel_cap_t *permitted) +int security_capset_check(kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) { - return security_ops->capset_check(target, effective, inheritable, permitted); + return security_ops->capset_check(effective, inheritable, permitted); } -void security_capset_set(struct task_struct *target, - kernel_cap_t *effective, - kernel_cap_t *inheritable, - kernel_cap_t *permitted) +void security_capset_set(kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) { - security_ops->capset_set(target, effective, inheritable, permitted); + security_ops->capset_set(effective, inheritable, permitted); } int security_capable(struct task_struct *tsk, int cap) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 378dc53c08e..df9986940e9 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1790,22 +1790,22 @@ static int selinux_capget(struct task_struct *target, kernel_cap_t *effective, return secondary_ops->capget(target, effective, inheritable, permitted); } -static int selinux_capset_check(struct task_struct *target, kernel_cap_t *effective, +static int selinux_capset_check(kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { int error; - error = secondary_ops->capset_check(target, effective, inheritable, permitted); + error = secondary_ops->capset_check(effective, inheritable, permitted); if (error) return error; - return task_has_perm(current, target, PROCESS__SETCAP); + return task_has_perm(current, current, PROCESS__SETCAP); } -static void selinux_capset_set(struct task_struct *target, kernel_cap_t *effective, +static void selinux_capset_set(kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { - secondary_ops->capset_set(target, effective, inheritable, permitted); + secondary_ops->capset_set(effective, inheritable, permitted); } static int selinux_capable(struct task_struct *tsk, int cap, int audit) |