CVE-2022-49902 block: Fix possible memory leak for rq_wb on add_disk failure

In the Linux kernel, the following vulnerability has been resolved: block: Fix possible memory leak for rqwb on adddisk failure kmemleak reported memory leaks in deviceadddisk: kmemleak: 3 new suspected memory leaks unreferenced object 0xffff88800f420800 size 512: comm "modprobe", pid 4275, jiffi...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to clean up rqwb when adddisk fails, which could lead to a memory leak...