High severity7.8NVD Advisory· Published Jul 25, 2026· Updated Sep 3, 2026
CVE-2026-64344
CVE-2026-64344
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")
Affected products
27cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 11 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.24.1,<5.10.261
- cpe:2.3:o:linux:linux_kernel:2.6.24:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.24:rc8:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.2:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.2:rc2:*:*:*:*:*:*
- (no CPE)
- osv-coords15 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
>= 2.6.24, < 5.10.261+ 14 more
- (no CPE)range: >= 2.6.24, < 5.10.261
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1.160000.2.22
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 7.1.7-1.1
- (no CPE)range: < 6.12.0-160000.38.1
- (no CPE)range: < 6.12.0-160000.38.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872nvdPatch
- git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cbnvdPatch
- git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09nvdPatch
- git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41nvdPatch
- git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4nvdPatch
- git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515nvdPatch
- git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4nvdPatch
- git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4nvdPatch
News mentions
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