USB: idmouse: fix use-after-free on disconnect race (Linux Linux)

CVE-2026-64344
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 2 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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")

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 54d2bc068fd21bcb096660938bce7c7265613a24 < 31e75fed8f90cfea9f8285e7ed135b0e452bf872 ; affected 54d2bc068fd21bcb096660938bce7c7265613a24 < 8d53b14ad4ccbff6d306b3a39c812303f4a87d41 ; affected 54d2bc068fd21bcb096660938bce7c7265613a24 < f62622e947f82a3854a8502d09492ffbdeb252b4 ; affected 54d2bc068fd21bcb096660938bce7c7265613a24 < 60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09 ; affected 54d2bc068fd21bcb096660938bce7c7265613a24 < d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4 ; affected 54d2bc068fd21bcb096660938bce7c7265613a24 < 54c2b7356b4aeea467f9fb13b85e9e036bc428cb
Linux · Linuxaffected 2.6.24 ; unaffected 0 < 2.6.24 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD