CVE-2022-49746
NXP IMX SDMA Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init If the function sdma_load_context() fails, the sdma_desc will be freed, but the allocated desc->bd is forgot to be freed. We already met the sdma_load_context() failure case and the log as below: [ 450.699064] imx-sdma 30bd0000.dma-controller: Timeout waiting for CH0 ready ... In this case, the desc->bd will not be freed without this change.
INFO
Published Date :
March 27, 2025, 5:15 p.m.
Last Modified :
March 28, 2025, 6:11 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-49746.
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The following table lists the changes that have been made to the
CVE-2022-49746 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 27, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init If the function sdma_load_context() fails, the sdma_desc will be freed, but the allocated desc->bd is forgot to be freed. We already met the sdma_load_context() failure case and the log as below: [ 450.699064] imx-sdma 30bd0000.dma-controller: Timeout waiting for CH0 ready ... In this case, the desc->bd will not be freed without this change. Added Reference https://git.kernel.org/stable/c/1417f59ac0b02130ee56c0c50794b9b257be3d17 Added Reference https://git.kernel.org/stable/c/43acd767bd90c5d4172ce7fee5d9007a9a08dea9 Added Reference https://git.kernel.org/stable/c/80ee99e52936b2c04cc37b17a14b2ae2f9d282ac Added Reference https://git.kernel.org/stable/c/bd0050b7ffa87c7b260d563646af612f4112a778 Added Reference https://git.kernel.org/stable/c/ce4745a6b8016fae74c95dcd457d4ceef7d98af1 Added Reference https://git.kernel.org/stable/c/dbe634ce824329d8f14079c3e9f8f11670894bec
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49746 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49746
weaknesses.