漏洞标题
Linux 内核中的网络/调度器：cls_u32 组件的使用-after-free
漏洞描述信息
Linux内核中net/sched组件的Use-after-free漏洞：cls_u32部分
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
漏洞类别
释放后使用
漏洞标题
Use-after-free in Linux kernel's net/sched: cls_u32 component
漏洞描述信息
A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation.
When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
漏洞类别
释放后使用
漏洞标题
Linux kernel 资源管理错误漏洞
漏洞描述信息
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，该漏洞源于内存释放后重用。攻击者利用该漏洞可以提升权限。
CVSS信息
N/A
漏洞类别
资源管理错误