CVE-2021-47070

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix another memory leak in error handling paths Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probe function is never freed in the error handling path. Add the missing 'vmbus_free_ring()' call. Note that it is already freed in the .remove function.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df	Patch
https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07	Patch
https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df	Patch
https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc2::::::

History

19 Mar 2025, 16:01

Type	Values Removed	Values Added
CWE		CWE-401
CPE		cpe:2.3:o:linux:linux_kernel:5.13:rc1:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.13:rc2::::::
References	~~() https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df -~~	() https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df - Patch
References	~~() https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07 -~~	() https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07 - Patch
First Time		Linux linux Kernel Linux

Information

Published : 2024-03-01 22:15

Updated : 2025-03-19 16:01

NVD link : CVE-2021-47070

Mitre link : CVE-2021-47070

CVE.ORG link : CVE-2021-47070

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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