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I. Basic Information for CVE-2021-47602
Vulnerability Information

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Vulnerability Title
mac80211: track only QoS data frames for admission control
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported (see below) an uninitialized value here due to a status of a non-QoS nullfunc packet, which isn't even long enough to contain the QoS header. Fix this to only do anything for QoS data packets.
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,该漏洞源于在准入控制过程中,错误地跟踪了非QoS类型的数据帧。
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 02219b3abca59fca81711bfe7ee78df7abad97ce ~ 69f054d6642c8f6173724ce17e7ee3ff66b8f682 -
LinuxLinux 3.19 -
II. Public POCs for CVE-2021-47602
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III. Intelligence Information for CVE-2021-47602
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IV. Related Vulnerabilities
V. Comments for CVE-2021-47602

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