函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\usercopy.c Create Date:2022-07-27 18:11:05
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：check_bogus_address

函数原型：static inline void check_bogus_address(const unsigned long ptr, unsigned long n, bool to_user)

返回类型：void

参数：

类型参数名称
const unsigned longptr
unsigned longn
boolto_user
151  如果ptr加n减1小于ptr则usercopy_abort("wrapped address", NULL, to_user, 0, ptr + n)
155  如果ZERO_OR_NULL_PTR(ptr)则usercopy_abort("null address", NULL, to_user, ptr, n)
调用者
名称描述
__check_object_sizeValidates that the given object is:* - not bogus address* - fully contained by stack (or stack frame, when available)* - fully within SLAB object (or object whitelist area, when available)* - not in kernel text