Vulnerability Information
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Vulnerability Title
bpf: Fix remap of arena.
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close.
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，该漏洞源于在bpf arena 逻辑没有考虑到 mremap 操作，需要为多次 mmap 事件添加引用计数，以防止 arena_vm_close 中的释放后重用问题。
CVSS Information
N/A
Vulnerability Type
N/A