CVE-2026-64344— USB: idmouse: fix use-after-free on disconnect race
Possible ATT&CK Techniques 2AI
T1068 · Exploitation for Privilege Escalation T1211 · Exploitation for StealthAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24< 31e75fed8f90cfea9f8285e7ed135b0e452bf872 | affected |
54d2bc068fd21bcb096660938bce7c7265613a24< 8d53b14ad4ccbff6d306b3a39c812303f4a87d41 | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< f62622e947f82a3854a8502d09492ffbdeb252b4 | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< 60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09 | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4 | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< 54c2b7356b4aeea467f9fb13b85e9e036bc428cb | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< e88cff5fbaa629f3cab45c8b46f395d62c2eb515 | affected | ||
54d2bc068fd21bcb096660938bce7c7265613a24< ff002c153f9722caece3983cc23dc4d9d4652cb4 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-64344
Vulnerability Information
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Vulnerability Title
USB: idmouse: fix use-after-free on disconnect race
Source: CVE Program / CVE List V5
Vulnerability 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")
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于USB idmouse驱动中mutex_unlock()在释放锁后访问互斥结构，导致释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-64344
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-64344 (8)
Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total
| CVE-2026-64355 | 9.8 CRITICAL | bpf: Reject fragmented frames in devmap |
| CVE-2026-64459 | 9.8 CRITICAL | tcp: restore RCU grace period in tcp_ao_destroy_sock |
| CVE-2026-64303 | 9.8 CRITICAL | spi: fsl-lpspi: terminate the RX channel on TX prepare failure path |
| CVE-2026-64439 | 9.8 CRITICAL | crypto: krb5 - filter out async aead implementations at alloc |
| CVE-2026-64410 | 9.8 CRITICAL | netfilter: flowtable: IPIP tunnel hardware offload is not yet support |
| CVE-2026-64399 | 9.8 CRITICAL | ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE |
| CVE-2026-64397 | 9.8 CRITICAL | ksmbd: serialize QUERY_DIRECTORY requests per file |
| CVE-2026-64391 | 9.8 CRITICAL | ksmbd: use opener credentials for ADS I/O |
| CVE-2026-64387 | 9.8 CRITICAL | smb: client: fix query directory replay double-free |
| CVE-2026-64386 | 9.8 CRITICAL | smb: client: fix query_info() replay double-free |
| CVE-2026-64385 | 9.8 CRITICAL | smb: client: fix double-free in SMB2_ioctl() replay |
| CVE-2026-64383 | 9.8 CRITICAL | smb: client: fix double-free in SMB2_flush() replay |
| CVE-2026-64384 | 9.8 CRITICAL | smb: client: fix change notify replay double-free |
| CVE-2026-64268 | 9.8 CRITICAL | RDMA/siw: bound Read Response placement to the RREAD length |
| CVE-2026-64523 | 9.8 CRITICAL | net/handshake: Take a long-lived file reference at submit |
| CVE-2026-64269 | 9.1 CRITICAL | RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg |
| CVE-2026-64257 | 9.1 CRITICAL | smb: client: reject overlapping data areas in SMB2 responses |
| CVE-2026-64319 | 9.1 CRITICAL | nvmet-auth: validate reply message payload bounds against transfer length |
| CVE-2026-64320 | 9.1 CRITICAL | nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page |
| CVE-2026-64393 | 9.1 CRITICAL | ksmbd: run set info with opener credentials |
Showing top 20 of 274 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64560
posix-cpu-timers: Prevent UAF caused by non-leader exec() ra - CVE-2026-64559
s390/pkey: Check length in PKEY_VERIFYPROTK ioctl - CVE-2026-64558
s390/pkey: Check length in pkey_pckmo handler implementation - CVE-2026-64556
perf/core: Detach event groups during remove_on_exec - CVE-2026-64557
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_conne
Same vendor: Linux
- CVE-2026-64560
posix-cpu-timers: Prevent UAF caused by non-leader exec() ra - CVE-2026-64559
s390/pkey: Check length in PKEY_VERIFYPROTK ioctl - CVE-2026-64558
s390/pkey: Check length in pkey_pckmo handler implementation - CVE-2026-64556
perf/core: Detach event groups during remove_on_exec - CVE-2026-64557
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_conne
V. Comments for CVE-2026-64344
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