r: detected read beyond size of object passed as 2nd parameter

路口游子

于 2018-12-11 02:02:07 发布

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本文详细解析了在/home/du/下载/DPO/os/linux/../../os/linux/sta_ioctl.c文件中rt_ioctl_iwaplist函数内memcpy调用导致的错误。错误发生在第623行，调用了__read_overflow2函数，该函数被声明为具有错误属性，检测到读取超出了传递给第二个参数的对象大小。此问题在编译过程中由make命令触发，导致sta_ioctl.o目标文件构建失败。

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from /home/du/下载/DPO/include/rtmp_os.h:46,
from /home/du/下载/DPO/include/rtmp_comm.h:76,
from /home/du/下载/DPO/os/linux/../../os/linux/sta_ioctl.c:33:
In function ‘memcpy’,
inlined from ‘rt_ioctl_iwaplist’ at /home/du/下载/DPO/os/linux/../../os/linux/sta_ioctl.c:623:2:
./include/linux/string.h:341:4: error: call to ‘__read_overflow2’ declared with attribute error: detected read beyond size of object passed as 2nd parameter
__read_overflow2();
^~~~~~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:327：/home/du/下载/DPO/os/linux/../../os/linux/sta_ioctl.o] 错误 1
make[1]: *** [Makefile:1546：_module_/home/du/下载/DPO/os/linux] 错误 2
make[1]: 离开目录“/usr/src/linux-headers-4.18.0-10-generic”