Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\exec.c Create Date:2022-07-28 20:03:53
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:valid_arg_len

Proto:static bool valid_arg_len(struct linux_binprm *bprm, long len)

Type:bool

Parameter:

TypeParameterName
struct linux_binprm *bprm
longlen
289  Return len <= 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.
Caller
NameDescribe
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.