CVE-2026-68410
wifi: libertas: fix memory leak in helper_firmware_cb()
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed.
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-2026-68410
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
- Apply the kernel patch for the libertas driver.
- Free the single-stage firmware image after load.
- Call release_firmware() after lbs_fw_loaded().
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-2026-68410.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68410 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-2026-68410
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-2026-68410 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68410 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': '1dfba3060fe7ee03ccec25a91d35085142dfc295', 'lessThan': 'd497b7566e74920acfe283dd6b2cbf1682890796', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfba3060fe7ee03ccec25a91d35085142dfc295', 'lessThan': 'eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfba3060fe7ee03ccec25a91d35085142dfc295', 'lessThan': '6cda91bbb8dc3d22ef0323008a12dcf73a5129da', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfba3060fe7ee03ccec25a91d35085142dfc295', 'lessThan': '644640cde2fb216e6567de5eee780a38dbc95928', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfba3060fe7ee03ccec25a91d35085142dfc295', 'lessThan': '63c2391deefb31e1b801b7f32bd502ca4808639b', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/libertas/firmware.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.13', '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-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/libertas/firmware.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed. Added Reference https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b Added Reference https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928 Added Reference https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da Added Reference https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796 Added Reference https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c