0.0
NA
CVE-2026-64344
USB: idmouse: fix use-after-free on disconnect race
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: USB: idmouse: fix use-after-free on disconnect race mutex_unlock() may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly (unlike spinlocks and refcounts). [1][2] Use a kref to release the driver data to avoid use-after-free in mutex_unlock() when release() races with disconnect(). [1] a51749ab34d9 ("locking/mutex: Document that mutex_unlock() is non-atomic") [2] 2b9d9e0a9ba0 ("locking/mutex: Clarify that mutex_unlock(), and most other sleeping locks, can still use the lock object after it's unlocked")
Details
INFO
Published Date :
July 25, 2026, 10:17 a.m.
Last Modified :
Aug. 17, 2026, 5:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Use a kref to release driver data and avoid race conditions during disconnect.
- Update the Linux kernel.
- Apply the USB: idmouse patch.
- Use kref for driver data release.
References
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-2026-64344.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64344 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-2026-64344
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-2026-64344 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64344 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.
-
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': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '31e75fed8f90cfea9f8285e7ed135b0e452bf872', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '8d53b14ad4ccbff6d306b3a39c812303f4a87d41', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'f62622e947f82a3854a8502d09492ffbdeb252b4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'd0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '54c2b7356b4aeea467f9fb13b85e9e036bc428cb', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'e88cff5fbaa629f3cab45c8b46f395d62c2eb515', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'ff002c153f9722caece3983cc23dc4d9d4652cb4', 'versionType': 'git'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '31e75fed8f90cfea9f8285e7ed135b0e452bf872', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '8d53b14ad4ccbff6d306b3a39c812303f4a87d41', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'f62622e947f82a3854a8502d09492ffbdeb252b4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'd0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '54c2b7356b4aeea467f9fb13b85e9e036bc428cb', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'e88cff5fbaa629f3cab45c8b46f395d62c2eb515', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'ff002c153f9722caece3983cc23dc4d9d4652cb4', 'versionType': 'git'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 25, 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': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '31e75fed8f90cfea9f8285e7ed135b0e452bf872', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '8d53b14ad4ccbff6d306b3a39c812303f4a87d41', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'f62622e947f82a3854a8502d09492ffbdeb252b4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'd0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': '54c2b7356b4aeea467f9fb13b85e9e036bc428cb', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'e88cff5fbaa629f3cab45c8b46f395d62c2eb515', 'versionType': 'git'}, {'status': 'affected', 'version': '54d2bc068fd21bcb096660938bce7c7265613a24', 'lessThan': 'ff002c153f9722caece3983cc23dc4d9d4652cb4', 'versionType': 'git'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/idmouse.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: USB: idmouse: fix use-after-free on disconnect race mutex_unlock() may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly (unlike spinlocks and refcounts). [1][2] Use a kref to release the driver data to avoid use-after-free in mutex_unlock() when release() races with disconnect(). [1] a51749ab34d9 ("locking/mutex: Document that mutex_unlock() is non-atomic") [2] 2b9d9e0a9ba0 ("locking/mutex: Clarify that mutex_unlock(), and most other sleeping locks, can still use the lock object after it's unlocked") Added Reference https://git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872 Added Reference https://git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cb Added Reference https://git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09 Added Reference https://git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41 Added Reference https://git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4 Added Reference https://git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515 Added Reference https://git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4 Added Reference https://git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.