函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\selinux\hooks.c Create Date:2022-07-27 20:28:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：prm security operations

函数原型：static unsigned int ptrace_parent_sid(void)

返回类型：unsigned int

参数：无

2263  sid等于0
2266  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
2267  tracer等于ptrace_parent - return the task that is tracing the given task*@task: task to consider* Returns %NULL if no one is tracing @task, or the &struct task_struct* pointer to its tracer.* Must called under rcu_read_lock(). The pointer returned might be kept
2268  如果tracer则sid等于get the objective security ID of a task
2270  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
2272  返回:sid
调用者
名称描述
selinux_bprm_set_creds
selinux_setprocattr