diff options
Diffstat (limited to 'security/commoncap.c')
| -rw-r--r-- | security/commoncap.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/security/commoncap.c b/security/commoncap.c index 5edabc7542ae..0b6537a3672d 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -63,7 +63,8 @@ int cap_settime(struct timespec *ts, struct timezone *tz) return 0; } -int cap_ptrace (struct task_struct *parent, struct task_struct *child) +int cap_ptrace (struct task_struct *parent, struct task_struct *child, + unsigned int mode) { /* Derived from arch/i386/kernel/ptrace.c:sys_ptrace. */ if (!cap_issubset(child->cap_permitted, parent->cap_permitted) && @@ -103,10 +104,16 @@ static inline int cap_inh_is_capped(void) return (cap_capable(current, CAP_SETPCAP) != 0); } +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) +{ + return !capable(CAP_SETPCAP); +} #endif /* def CONFIG_SECURITY_FILE_CAPABILITIES */ @@ -342,9 +349,10 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) bprm->e_uid = current->uid; bprm->e_gid = current->gid; } - if (!capable (CAP_SETPCAP)) { - new_permitted = cap_intersect (new_permitted, - current->cap_permitted); + if (cap_limit_ptraced_target()) { + new_permitted = + cap_intersect(new_permitted, + current->cap_permitted); } } } |