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kill syscall check uid

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This commit is contained in:
Tomoki Shirasawa
2015-03-17 15:04:36 +09:00
parent ed6d94a358
commit 8934eb91a4
9 changed files with 123 additions and 2 deletions
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11
arch/x86/kernel/syscall.c
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@ -932,6 +932,17 @@ do_kill(int pid, int tid, int sig, siginfo_t *info, int ptracecont)
return 0;
}
if(sig != SIGCONT &&
proc->ftn->euid != 0 &&
proc->ftn->ruid != tproc->ftn->ruid &&
proc->ftn->euid != tproc->ftn->ruid &&
proc->ftn->ruid != tproc->ftn->suid &&
proc->ftn->euid != tproc->ftn->suid){
ihk_mc_spinlock_unlock_noirq(savelock);
cpu_restore_interrupt(irqstate);
return -EPERM;
}
doint = 0;
if(tid == -1){
ihk_mc_spinlock_lock_noirq(&tproc->sigshared->lock);