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I. Basic Information for CVE-2021-46979
Vulnerability Information

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Vulnerability Title
iio: core: fix ioctl handlers removal
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iio: core: fix ioctl handlers removal Currently ioctl handlers are removed twice. For the first time during iio_device_unregister() then later on inside iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask(). Double free leads to kernel panic. Fix this by not touching ioctl handlers list directly but rather letting code responsible for registration call the matching cleanup routine itself.
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 ioctl 处理程序会被删除两次。
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 8dedcc3eee3aceb37832176f0a1b03d5687acda3 ~ 11e1cae5da4096552f7c091476cbadbc0d1817da -
LinuxLinux 5.11 -
II. Public POCs for CVE-2021-46979
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III. Intelligence Information for CVE-2021-46979
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IV. Related Vulnerabilities
V. Comments for CVE-2021-46979

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