CVE-2021-47669

In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105	Patch
https://git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cb	Patch
https://git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052	Patch
https://git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70	Patch
https://git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc4::::::

History

No history.

Information

Published : 2025-04-17 18:15

Updated : 2025-04-21 18:41

NVD link : CVE-2021-47669

Mitre link : CVE-2021-47669

CVE.ORG link : CVE-2021-47669

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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