Vulnerability Information
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Vulnerability Title
vt_ioctl: fix array_index_nospec in vt_setactivate
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 安全漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于vt_ioctl模块中发现数组索引越界问题。vt_setactivate中的array_index_nospec确保越界值在瞬态路径上设置为零，但随后的值减一操作导致瞬态整数下溢。
CVSS Information
N/A
Vulnerability Type
N/A