High severity7.8NVD Advisory· Published Jul 25, 2026· Updated Oct 21, 2026
CVE-2026-64341
CVE-2026-64341
Description
In the Linux kernel, the following vulnerability has been resolved:
USB: iowarrior: 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
26cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.21.1,<6.12.97
- cpe:2.3:o:linux:linux_kernel:2.6.21:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.21:rc7:*:*:*:*:*:*
- 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
>= 2.6.21, < 6.6.160+ 14 more
- (no CPE)range: >= 2.6.21, < 6.6.160
- (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
5- git.kernel.org/stable/c/3c0a7b29ebb391d5f50b115e86f842b709195b08nvdPatch
- git.kernel.org/stable/c/71590982700fdeb39a37a500c877228b0140978envdPatch
- git.kernel.org/stable/c/c602254ba4c10f60a73cd99d147874f86a3f485cnvdPatch
- git.kernel.org/stable/c/30ec3025b771511625375fb3fb959aea3b45fb0dnvd
- git.kernel.org/stable/c/4e7d3c98fed73d3be84d3e146d8d9be0309e725bnvd
News mentions
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