CVE-2021-47655

In the Linux kernel, the following vulnerability has been resolved: media: venus: vdec: fixed possible memory leak issue The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation. Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function. Addresses-Coverity: 1494120 ("Resource leak")

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 NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e	Patch
https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019	Patch
https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb	Patch
https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-02-26 06:37

Updated : 2025-10-01 20:15

NVD link : CVE-2021-47655

Mitre link : CVE-2021-47655

CVE.ORG link : CVE-2021-47655

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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