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I. Basic Information for CVE-2022-49994
Vulnerability Information

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Vulnerability Title
bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem The vmemmap pages is marked by kmemleak when allocated from memblock. Remove it from kmemleak when freeing the page. Otherwise, when we reuse the page, kmemleak may report such an error and then stop working. kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing) kmemleak: Kernel memory leak detector disabled kmemleak: Object 0xffff98fb6be00000 (size 335544320): kmemleak: comm "swapper", pid 0, jiffies 4294892296 kmemleak: min_count = 0 kmemleak: count = 0 kmemleak: flags = 0x1 kmemleak: checksum = 0 kmemleak: backtrace:
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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bootmem未从kmemleak移除vmemmap页面,可能导致内存泄漏检测停止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux f41f2ed43ca5258d70d53290d1951a21621f95c8 ~ 16a12ee619e39e8112f61b603255c16b73b6264b -
LinuxLinux 5.14 -
II. Public POCs for CVE-2022-49994
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III. Intelligence Information for CVE-2022-49994
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IV. Related Vulnerabilities
V. Comments for CVE-2022-49994

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