漏洞信息
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Vulnerability Title
bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove() In fsl_mc_bus_remove(), mc->root_mc_bus_dev->mc_io is passed to fsl_destroy_mc_io(). However, mc->root_mc_bus_dev is already freed in fsl_mc_device_remove(). Then reference to mc->root_mc_bus_dev->mc_io triggers KASAN use-after-free. To avoid the use-after-free, keep the reference to mc->root_mc_bus_dev->mc_io in a local variable and pass to fsl_destroy_mc_io(). This patch needs rework to apply to kernels older than v5.15.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 资源管理错误漏洞
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存在资源管理错误漏洞，该漏洞源于fsl-mc-bus在移除时未正确处理mc_io引用，可能导致KASAN检测到释放后重用。
CVSS Information
N/A
Vulnerability Type
N/A