CVE-2026-68331
dpaa2-eth: put MAC endpoint device on disconnect
Description
In the Linux kernel, the following vulnerability has been resolved: dpaa2-eth: put MAC endpoint device on disconnect fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The Ethernet connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object. However, the disconnect path only disconnects and closes the MAC before freeing the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected. Drop the endpoint device reference after closing the MAC and before freeing the dpaa2_mac object.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 10, 2026, 1:20 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-68331
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Drop endpoint device reference post MAC disconnect.
- Ensure reference is dropped before freeing dpaa2_mac object.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68331.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68331 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-2026-68331
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68331 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68331 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
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '71947923089353f23f4f210864903c4dcf2c1696', 'lessThan': '915012e923316b8b5d5bf8fc771617b47bd7572d', 'versionType': 'git'}, {'status': 'affected', 'version': '71947923089353f23f4f210864903c4dcf2c1696', 'lessThan': 'e23e4a3b9dfd893469c731318d409cdf04fb1ddf', 'versionType': 'git'}, {'status': 'affected', 'version': '71947923089353f23f4f210864903c4dcf2c1696', 'lessThan': 'f112df0744e2d77baa68eeebb860021bbaaa022a', 'versionType': 'git'}, {'status': 'affected', 'version': '71947923089353f23f4f210864903c4dcf2c1696', 'lessThan': 'a3cecf169cc652b558d08661bb6ce55e4c933ec0', 'versionType': 'git'}, {'status': 'affected', 'version': '71947923089353f23f4f210864903c4dcf2c1696', 'lessThan': 'b4b201cc93ff70150853aba03e14d314d1980ca0', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.5'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: dpaa2-eth: put MAC endpoint device on disconnect fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The Ethernet connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object. However, the disconnect path only disconnects and closes the MAC before freeing the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected. Drop the endpoint device reference after closing the MAC and before freeing the dpaa2_mac object. Added Reference https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d Added Reference https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0 Added Reference https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0 Added Reference https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf Added Reference https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a