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I. Basic Information for CVE-2021-46991
Vulnerability Information

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Vulnerability Title
i40e: Fix use-after-free in i40e_client_subtask()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free")
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 i40e_client_subtask() 中存在释放后重用。
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 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b ~ c1322eaeb8af0d8985b5cc5fa759140fa0e57b84 -
LinuxLinux 4.16 -
II. Public POCs for CVE-2021-46991
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III. Intelligence Information for CVE-2021-46991
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IV. Related Vulnerabilities
V. Comments for CVE-2021-46991

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