CVE-2020-29368
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I. Basic Information for CVE-2020-29368
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.
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 竞争条件问题漏洞
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 5.7.5之前版本存在竞争条件问题漏洞，该漏洞源于mm huge memoryc中的split huge pmd中存在竞争条件，即写时复制实现可以授予意外的写访问权。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2020-29368
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045x_refsource_MISC
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210108-0002/x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2020-29368
Same Patch Batch · n/a · 2020-11-28 · 8 CVEs total
| CVE-2019-20934 | Linux kernel 资源管理错误漏洞 | |
| CVE-2020-29369 | Linux kernel 竞争条件问题漏洞 | |
| CVE-2020-29370 | Linux kernel 竞争条件问题漏洞 | |
| CVE-2020-29371 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2020-29372 | Linux kernel 竞争条件问题漏洞 | |
| CVE-2020-29373 | Linux kernel 路径遍历漏洞 | |
| CVE-2020-29374 | Linux kernel 竞争条件问题漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
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Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
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