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I. Basic Information for CVE-2021-47670
Vulnerability Information

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Vulnerability Title
can: peak_usb: fix use after free bugs
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.
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peak_usb驱动中释放后重用skb内存。
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 0a25e1f4f18566b750ebd3ae995af64e23111e63 ~ 5408824636fa0dfedb9ecb0d94abd573131bfbbe -
LinuxLinux 4.0 -
II. Public POCs for CVE-2021-47670
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III. Intelligence Information for CVE-2021-47670
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IV. Related Vulnerabilities
V. Comments for CVE-2021-47670

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