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I. Basic Information for CVE-2022-50285
Vulnerability Information

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Vulnerability Title
mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock. This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems. Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.
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,该漏洞源于未在减少h->resv_huge_pages前获取hugetlb_lock锁,可能导致计数器值损坏。
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 a88c769548047b21f76fd71e04b6a3300ff17160 ~ 3e50a07b6a5fcd39df1534d3fdaca4292a65efe6 -
LinuxLinux 4.4 -
II. Public POCs for CVE-2022-50285
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III. Intelligence Information for CVE-2022-50285
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IV. Related Vulnerabilities
V. Comments for CVE-2022-50285

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