CVE-2026-68321
net: txgbe: fix FDIR filter leak on remove
Description
In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregister_netdev() only calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in txgbe_close() is skipped in that case and the filters are leaked on driver remove. Free the filter list from txgbe_remove() as well.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to include the fix.
- Ensure txgbe_fdir_filter_exit is called during driver remove.
- Verify filter cleanup in txgbe_remove function.
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-2026-68321.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68321 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-2026-68321
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-2026-68321 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68321 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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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '5c2f04258be2645cdd8f87553990948e7054e7fb', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '2d34421bfa261f7e83bea2f2f75fa75e0c3037d1', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '4946dea2386333e5d93bfb36df803fefb5a8c635', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': 'ecaa37826340520664a4e5522f803ff48fc3f564', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '5c2f04258be2645cdd8f87553990948e7054e7fb', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '2d34421bfa261f7e83bea2f2f75fa75e0c3037d1', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '4946dea2386333e5d93bfb36df803fefb5a8c635', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': 'ecaa37826340520664a4e5522f803ff48fc3f564', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'affected'}] -
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': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '5c2f04258be2645cdd8f87553990948e7054e7fb', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '2d34421bfa261f7e83bea2f2f75fa75e0c3037d1', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': '4946dea2386333e5d93bfb36df803fefb5a8c635', 'versionType': 'git'}, {'status': 'affected', 'version': '4bdb441105dcea40ac6e01756314c0fdf5173ce1', 'lessThan': 'ecaa37826340520664a4e5522f803ff48fc3f564', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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/wangxun/txgbe/txgbe_main.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregister_netdev() only calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in txgbe_close() is skipped in that case and the filters are leaked on driver remove. Free the filter list from txgbe_remove() as well. Added Reference https://git.kernel.org/stable/c/2d34421bfa261f7e83bea2f2f75fa75e0c3037d1 Added Reference https://git.kernel.org/stable/c/4946dea2386333e5d93bfb36df803fefb5a8c635 Added Reference https://git.kernel.org/stable/c/5c2f04258be2645cdd8f87553990948e7054e7fb Added Reference https://git.kernel.org/stable/c/ecaa37826340520664a4e5522f803ff48fc3f564