函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\exec.c Create Date:2022-07-29 10:33:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：valid_arg_len

函数原型：static bool valid_arg_len(struct linux_binprm *bprm, long len)

返回类型：bool

参数：

类型参数名称
struct linux_binprm *bprm
longlen
289  返回:len小于等于These are the maximum length and maximum number of strings passed to the* execve() system call. MAX_ARG_STRLEN is essentially random but serves to* prevent the kernel from being unduly impacted by misaddressed pointers.
调用者
名称描述
copy_strings'copy_strings()' copies argument/environment strings from the old* processes's memory to the new process's stack. The call to get_user_pages()* ensures the destination page is created and not swapped out.